when i press play its not launching and it becomes "start" again and again and not "stop" like when a game launches properly

I am planning about doing this 100% (all achievements), how long may I expect it to be? I have heard people calling it 400-600hr, depending on the skill of each player but, if someone has done it, how was it for you or what have you heard about it? If you are doing it right now, how have you been handling your sessions? Every information is apreciated ...

I can boot into super meat world just fine, it just loads no levels. Entering an "The Unknown" Level just causes the game to freeze till its closed manually. I've uninstalled and reinstalled, verified the game files, and i'm not on the ogversion. Is there anything else I can do to try to get them to load? I don't want to be forever unable to play community levels and be unable to get "Golden Gift" acheivment....

Game seems to stutter and hover around 40fps with severe input delay, I am playing on an i9 10900 with an rx 9070 so wtf is going on.

How do i access the warp zone levels in the Level editor? I should just be able to say "Sky Pup 1-1". Help would be appreciated (also the character warpzones)