Excellent that you're still working on this.
I've run into a couple of things: One, visiting any well makes my fans go to maximum within moments; leaving the well screen promptly relieves this and my machine returns to the default quiet noise level. I suspect it's to do with the foreground layered over a blurred background. I can reliably reproduce this.
Two, I've visited and revisited every part of a level 5 forest in the corrupted region, and I have completed all (visible) actions there (combats, chests). The overworld map still lists it as "area incomplete".
Linux Mint 22 Cinnamon
Ryzen 5 5600x
Radeon RX 580
If you'd like my save file or other info, just ask.