As glitches go, I thought this was pretty cool. Let's just say that I was in the right headspace for psychedelic colors. This happened to me last night on Bazzite Nvidia. It lasted for a few minutes, but before I could think to take a picture, it corrected itself. Must be a game issue if it is also happening on PS5. The only reference I could find online was this reddit post. May be HDR related. https://old.reddit.com/r/BaldursGate3/comments/1kbqqn4/weird_color_issue_on_ps5_since_dleding_patch_8/
Yeah! For a few glorious moments, the Shadow-Cursed Lands were alive with color. :D