Yes, without question. It doesn't matter if it was good at one point, since the ending rendered it entirely unwatchable, there's countless stories online about people talking about how they can't even rewatch the old seasons now because they know about how trash it'll be at the end and a great point made that almost no one was talking about it or rewatching it during the lockdowns even though they were tons of things. And like people still watch and love the original Star Wars trilogy because you can pretend the prequels and Disney trilogy don't exist, which you can't really do for the last two seasons of GoT, so it's worthless now. Even read one about a guy who said that he burned his old DVD collection of the old seasons because he couldn't stand seeing them on a shelf and they made him angry after that. It is absolutely a truly terrible, complete piece of sh!t garbage show and it should've never been made.
Like consider that two years later...there's like zero fandom remaining, even though shows that ended far older like The Sopranos and Breaking Bad still have massive fandoms who regularly talk about them, and yet there's still regularly people complaining about how much the finale sucked two years later! Even Dexter which has a similarly hated ending that happened years prior still has lots of fans and gets talked about because since each Dexter season is its own self-contained plot arc you can ignore the later bad seasons and the ending, but you can't do that with GoT.
Even Buffy has a fan base today. Of course, when people think of Buffy(the character), they don’t think Joss, but of Sarah Michelle Gellar(who helped define her character).