Personally, I think the entire TITANS concept is unworkable - at least for me. The entire cast was assembled by grabbing a bunch of available copyrights, not by identifying characters who fit together well.
Teen Heroes: The TEEN TITANS comic book made sense: it was about the adventures of teen sidekicks. It's about what Robin, Kid-Flash and Aqualad got up to when Batman, The Flash and Aquaman weren't around. It made sense to, over time, add newer or more recent incarnations of sidekick characters: Wonder Girl (whose continuity is odd), Speedy (Roy Harper, Green Arrow's sidekick), Beast Boy (from Doom Patrol) -- and to add a few teen characters who didn't have a parent book of their own (Starfire and Cyborg) so that the TEEN TITANS book would have control of a few cast members.
Adult Titans? However, by the late 90s, the characters outside the control of the TEEN TITANS banner were no longer teens. The BATMAN office had changed Dick into an adult. The FLASH office had changed Kid Flash into the Flash. The WONDER WOMAN office had made Wonder Girl into an adult Donna Tory. The GREEN ARROW office had changed Speedy into the adult Arsenal. The AQUAMAN office had changed Aqualad into the adult Tempest. There were five different editorial teams handing the Batman, Flash, Wonder Woman, Green Arrow and Aquaman characters and fairly or unfairly, these teams weren't concerned with the TEEN TITANS brand.
Indistinct Titans: The TEEN TITANS office tried to deal with this by changing the title to TITANS which became a title about former teen superheroes who were still superheroes but no longer teens and and were now a team defined by how they all used to be teenagers and were now adults -- which is not a particularly unique trait. The concept was confused and confusing. There was nothing that made the TITANS distinct from any other assembly of adult superheroes. TITANS became the title aimed at people who used to buy TEEN TITANS.
Young Justice: DC later introduced the YOUNG JUSTICE concept which was a support group of sidekick characters Robin (Tim Drake), Impulse (Bart Allen), Superboy (Connor Kent), Wonder Girl (Cassandra Sandsmark) and some original characters who weren't controlled by a parent book (Arrowette, L'il Lobo, Empress) etc.. YOUNG JUSTICE was more TEEN TITANS than TITANS had been for years.
Teen Titans and Titans: Eventually, DC had a TEEN TITANS book with most of the YOUNG JUSTICE lineup and retired the YOUNG JUSTICE brand, and had a separate TITANS book for the former-teen-now-adult team and presented the adult TITANS as a sort of eternal college reunion. In recent years, the YOUNG JUSTICE branding has made a comeback with Tim, Bart, Connor, Cassie and others while TEEN TITANS has Robin (Damian Wayne), Kid-Flash (Wallace West, the cousin of Wally), Aqualad (Jackson Hyde), Beast Boy, Starfire and Raven.
It can be mentally draining to keep all of this comic book stuff straight.
A Suggestion: In my view, if DC must publish a TITANS book staring the adult Titans, their best best is to make it a second NIGHTWING title, NIGHTWING AND THE TITANS, where Dick has lots of adventures with superpowered characters and as a counterpoint to the primary NIGHTWING title where he's a street level superhero. The series would be about how Nightwing knows everyone in the DC Universe. TITANS would become NIGHTWING TEAM-UP.
Getting back to TV:
Unheroic Superheroes: TITANS is a deeply confused show. It is a show about a team of former teen superheroes who are deeply traumatized by their past and moving on from their careers as superheroes by... forming a superhero team. (!?!?) It's about a superhero team who repeatedly encounter troubled young women being hunted by dark forces and heroically... plan to abandon them and only fail to do so due to unexpected circumstances. (?!?!) The show is largely focused these so-called superheroes fighting grudge matches in fight scenes during which they wear superhero costumes. (Season 3 seems to recognize this and have more heroics.)
A Mismatched Cast: The characters include a clone of Superman, an alien princess with superpowers escaping her people, a child of some primordial force of evil from the dawn of time, a troubled police detective who used to be a superhero, and a superhero couple who are looking to stop superheroing. Three seasons in and I'm not sure why these characters are in the same show or on the same team; why is Detective Dick Grayson the right character to help Raven and her dark magic powers? Why is a metahuman changeling in the same show as an alien princess? Why are characters who aren't enriched by their proximity put into the same series?
The explanation is that TITANS is a dumping ground for copyrights that the studio doesn't believe can sustain a show independently.
Separate Shows in One: Starfire should be in her own STARFIRE show, but I guess Berlanti and Warner Bros. and HBO Max don't think that show would have an audience. Superboy should be a guest-star in SUPERMAN AND LOIS, but he's not needed because Clark has two actual children for Superboy stories. Dick Grayson should should be in his own NIGHTWING show, but the studio and streamer would prefer to bundle all these copyrights under the TITANS banner.
Crippled: UNDER THE RED HOOD is a Batman story, not a TITANS story, and trying to tell it on TITANS is like trying to sail across the Atlantic with a Jeep. TITANS simply doesn't have the right tools to tell that story. TITANS clearly does not have the Batman license, only Bruce Wayne. It's absurd for TITANS to claim that Iain Glen and Curran Walters were running around Gotham City fighting crime during the first two seasons of TITANS when TITANS can never, ever, ever show Batman and Robin together.
Nightwing's Show: For the most part, TITANS has tried to be a NIGHTWING show and then added all these subplots that feel like discards from the hypothetical SUPERBOY and STARFIRE TV shows and the actual SUPERMAN AND LOIS TV show. There is absolutely no sense of what the Titans represent as a team. The Justice League is an assembly of analogues to mythological figures. The Avengers are deeply dysfunctional human beings who are also demi-gods. The Fantastic Four are a science fiction family. The Sliders are misfits lost in the multiverse.
No Team: The Titans are... a gang of miserable, unhappy, self-destructive, unheroic people who don't get along and constantly betray each other and inexplicably insist on living together while loathing their superhero careers while nonsensically insisting on wearing superhero costumes to fight people they don't like (while rarely fighting crime).
Dick Grayson: I think they should have just done a NIGHTWING show, had Dick fighting crime alone in the first season and possibly without the fantasy elements. I don't know if Dick is a character who really benefits from fighting eldritch gods or dating alien princesses (although he has). I know for sure that he doesn't benefit from being put into stories that were ultimately meant for Bruce Wayne.
Indistinct: I don't know what TITANS is. I don't think TITANS knows what it is. I would have preferred either having a NIGHTWING show or a TEEN TITANS show that actually featured teen characters.