I canceled Paramount Plus for personal reasons but decided to check out the free premiere on youtube.
I turned it off when the overacting villain showed up and haven't felt the urge to continue. I find the Doctor's state in the show pretty depressing to be honest. He had big dreams in Voyager to move beyond his programming, explore humanity as much as he could despite being a hologram, and so on. 800 years later and he's still doing Starfleet stuff on Starfleet ships, not really different than his routine on Voyager. I would've thought he would've moved on over the centuries. He seems pretty jaded too. For all his talk about holographic freedom in Voyager, I find it depressing that 800 years later he's basically a slave to the same old Starfleet routine, the very routine I sensed he wanted to escape in Voyager.
It's possible, even likely, that no one's keeping him there forcefully and he just found nothing better to do in his life, but that in itself is also a pretty depressing concept.