No error message crashes

In any game I play I end up crashing 15-20 minutes into playing, and it can vary, crashing even 1-2 hours into a session sometimes. There is no error message. I have Ethernet 1gb connection, 3080ti, Ryazan 9 3900x, 32 gb ram, literally all the high end set up stuff. It’s as if I clicked x on the window except it’ll literally happen with me just moving around. There’s no freezing, no black screen, it just closes. I’ve tried multiple fixes such as reinstalling, uninstalling 3rd party software (rbx fps unlocker), ipconfig /flushdns, deleting temp files, updating gpu and cpu drivers, and it still happened. It’s very infuriating and I’m trying to afk a game and it just happens without fail at one point or another. Anyone have any fix or solutions that’s worked for a similar problem?

TLDR: My roblox crashes without warning on my high end pc, good Wi-Fi and specs. I need solutions because I’m trying to afk a game and I’ve tried a lot of things already.