There's definitely some nostalgia glasses.

And I dunno where you started, but I've been playing BGS since Oblivion, and couldn't even get through an hour of Starfield. It played like a upscaled Xbox 360 game, with all the jank, yet none of the charm, more filler, all the loading screens, yet somehow ran like molasses. I have no idea what folks see in that game, despite the premise basically being made for me.

They have a bit of a "if you've played one you've played them all" problem

I think most are carried by their modding communities at this point which can be so involved they fundamentally change every aspect of the game.