Yes, that is it. Your Firmware version has been reported to contain bugs in this thread
https://community.frame.work/t/x11-crash-with-amdgpu-possibly-opengl/63089/3
can you downgrade to something between
- 202402xx and
- 202407xx
and confirm that your issues persists?
PS: The bugreport is harder to follow. Debian 13 uses 20241210-1 and a forum user reported this version 20241210 to be broken
https://packages.debian.org/search?keywords=firmware-amd-graphics&searchon=names&suite=all§ion=all