It pains me to say it but I agree that I'm ready for it to be done. It's not even that they hung on too long, it's that about the time Rick departed, they got lazy... the stories aren't interesting, the character that are left aren't really carrying the show...
Maybe it's because of Covid, but it all feels small now too - they have 2 or 4 actors at a time, no grand events or evolution of the lore, or overall arc. I've complained about it before, but for years the show has just gone from one enemy group to another... governor, then Negan's people, then the Whisperers, now the Reapers... That kind of thing is fine for awhile, but it's horrifically repetitive at this point. The Zombies used to be the problem, then the people were the problem and it was clever and metaphorical for a few years, but it's played out. The only thing I can think of that would make it interesting to me for awhile longer would be some sort of development where someone's worked out a cure in some secret lab, or the zombies were mutating, or maybe petering out on their own. And, at some point it WOULD fizzle out, even in this world of suspended disbelief, it's weird and hard to believe that zombies can stay animated for a decade with only the occasional meal of brains to keep them going. Physics and physiology say they'd rot eventually and the rate of new zombies certainly wouldn't be able to keep up indefinitely. The show just needs a radical new turn, or it needs to be put to pasture.
I don't want to overthink it, it's a fun show and there's certain leaps you need to make, but it's just gotten so stale now that it's sad.