Hard game crash persists on Ubuntu 24.04

Constant crashes on both Windows 11 and Linux desktop. Same Machine, 2 different OS. No hardware changes.

This was a fresh clean install from windows to Linux, a project I was planning anyway due to privacy concerns with windows Copilot. Figured I would also see if it changed anything with performance. It did not.

I understand POE2 does not have official support on Ubuntu but the crashes remain just as frequent. Only plus side is the PC does not hard reboot anymore.

After each crash I do a manual verify of the installed files through Steam and there is always 1 file that needs to be re-acquired. No idea what that file is but I can go about 30 minutes before another crash if I am lucky.



Other games in Ubuntu tested:
WOW / D4 (installed through battle.net / Lutris)
POE1 (steam, and standalone through Lutris)
Many others in steam library using Proton

No crashes.



Old:
Windows 11 24h2 (rollback changed nothing)

New:
Ubuntu 24.04
Steam Proton 9 (official from steam)
(GE Proton 9-21 through 9-25 all tested)

Hardware:
3080ti
i7-11700k
32gb Ram
1TB SSD for OS
+4TB storage

Standalone POE2 client installed through Lutirs seems the most stable from what limited things I have tried.

Limit cores used in Lutris advanced settings. I have 16 cores so I set the limit to 14.

5 hours now no hard crash. HUGE coming from several an hour.

AND hard crash forcing me to power cycle. Not the temp fix I had hoped for. Not putting my hardware at risk for an early access title. Done testing on my own.

This is NOT a windows issue. This is NOT an NVIDIA issue. This is a game code issue. Period.

All this testing and hoop jumping just to play a game I payed for. I'm done for now.

I DO NOT and WILL NOT recommend POE2 to any friends or family.

Still no actual update or response from the devs...