When the crash happens, I get a windows bubble saying 'Display driver AMD has stopped responding and has recovered'. So there seems to be a problem that is generally causing the game to freeze, as well as a specific trigger that always sets it off.

I have tried taking apart the whole base but swimming into the ocean where the base was (as well as other nearby areas) also makes the game freeze. It can also happen in other areas of the room, and outside the base as well, but I just noticed that this area instantly makes it freeze. This first happened after I loaded into my base for the first time (as I had just made it) and is consistently reproducible by staring at the porthole or that general direction (usually from the top left area of the room).

However, since a few days ago, my game has been freezing up with audio still playing in the background, meaning that I have to exit the game. My computer specs are not that good but the game has been running swimmingly with no issues except a slight graphics bug where the inside of the lifepod would be very bright due to a discarded flare. I got this game free from the Epic Store and it has quickly become one of my favorite games.

How to fix subnautica game lag