Your game is much more balanced, stable and polished (and fun) than every AAA title released this year. People (including me) have ideas and suggestions because they love the game, otherwise they wouldn't care. Also, I don't think any point of it is really relevant.
Nobody expects to change the level design now. Optional changes are always cool. I can imagine that 60fps on a 144Hz monitor looks worse than on a 60Hz monitor because it doesn't quite add up. This is a very exhausting topic to juggle game ticks, control timing and optional vsync.
I still have a list of things I would change but I have a feeling you take it as criticism. I will keep spreading the word. I've already "spammed" my subscribed Discord channels. So let's celebrate the Steam release and the positive reactions! 🥳