Hello everyone. I've currently been experiencing crashes when playing certain games. After a while, I realized that the only games where this happened were Unreal Engine games (Fortnite on Windows, Helldivers 2, Marvel Rivals and PayDay 3 on both Windows and Linux). Originally I believed that the problems were game related (the problems began when new Fortnite and Helldivers seasons began) but now that I noticed that Payday 3 crashes too I noticed that all of these games are made in Unreal. These are my specs:

GPU: AMD RX 6600 XT
CPU: AMD Ryzen 5 7600
RAM: 2x16 GB XPG (not sure about speed)

Some more info:
- Other games seem to work fine. I've mostly played God of War, GoW: Ragnarok, Doom Eternal and Street Fighter 6.
- The issue doesn't seem to be related to workload. Fortnite and Payday 3 will handle loading stuff and having may enemies on screen only to crash on calm moments.
- I ran Unigine Heaven 4.0 and it worked fine, I ran it in high and ultra settings and got around 200 fps. I let it run for a few minutes, nothing happened other than my PC sounding like a turbine.
- I have not messed around with overclocking or undervolting the GPU or CPU. The PC is second-hand (only 1 year of not intensive use) and the guy was not tech-savvy, so I don't expect him to have messed around with anything like that either.

I would really appreciate any help, thanks in advance.