I have been having these exact same issues however I just started getting them about 4 or 5 days ago with nothing hardware or software changing. Very similar specs as above 3070 instead of 4090 playing at 5120x1440 the random freezes seem to have no correlation to anything I am specifically doing in game. I can be tabbed out browsing a website and it freezes, in the middle of a fight, or just afk not moving in a housing area. After about 20-30 seconds it will usually unfreeze I have noticed that they tend to come in 2s for me. after 5 to 10 seconds after 1 freeze a 2nd will happen.