Constant crashing on gaming laptop

[lucra]

So, i bought this second hand a while back, it had some problems for a while and games would always crash for no reason (like call of duty), but I ended up fixing it. However, recently I have been trying to play Rainbow Six Siege, it runs well with good fps, however, after a game or not even, it would end up just freezing, closing and crashing. I have tried to find so many fixes to no avail and ended up coming to the community to try and get some help. It is really stressing me out as I know this laptop is beasty enough to run Siege, so it is really getting to my head and I really want to find a fix.

Specs and info
-Name - ASUS TUF Gaming Series laptop
-OS - Windows 11
-64-bit x64
-Age - says when it was registered by previous owner, about a year ago
-CPU - 11th Gen Intel(R) Core(TM) i5-11300H
-Graphics card - GeForce RTX 3050

-Windows is updated
-Temps only max to around 80 degrees
-I believe the latest BIOS is installed, I'm not the most techy person i'm not sure.