Do you remember how the game looked or how it ran after years ? You don't think about n64 games running 20fps. At least I don't.
I don't remember Turok running 25 fps on pc, Doom running 25fps or many 360 games. I remember playing these games and how good graphics were at the time.
I have easier time getting used to fps... which means, when I had 240hz monitor. After a while, it started to feel like a "standard" framerate. the "wow 240fps smoothness" was quickly gone and it became the new norm.
I can perfectly fine tell 30 vs 60 vs 144 vs 240. Even 144 felt like crap after gaming on 240hz... It's all about getting used to it.
But I noticed, that I personally appreciate nice graphics, with good anti aliasing and modern effects more.
I was more satisfied with 4k 27" 60hz monitor for Dark Souls 3 in amazing 4k than 240hz monitor for other games.
Now 4k120 oled is fantastic. The biggest upgrade over 27" 4k60hz monitor is how smooth the desktop is. But for gaming, I don't mind good 30fps as long as I am stunned by graphics and the framerate is stable and responsive. 30 fps can be terrible too