Ideas
I do not play Battlefield 6 (aside from beta tests and REDSEC), but I found this post when I was googling about my own issue — THE FINALS crashing due to Steam Recording/Overlay (XBOX GameBar) enabled, which is caused, I strongly assume, by Denuvo Anti-cheat.
Since OP could reproduce the crash in THE FINALS and didn’t have issues pre-Season 8, aka before DAC was introduced, I think we have a similar situation. I reported it all to Embark’s support team, and I recommend everyone to try and reason with Battlefield 6 devs since if they want to use this insane kernel level anti-cheats, then they should make it actually work and be stable for all users!
Here’s a link to my own post about my own issues which seem to be semi-related to this post ↓
https://steamcommunity.com/app/2073850/discussions/0/682986292645039876/