Thanks, Xorg crashes after in-place upgrade to debian 13: unw_get_proc_name failed: no unwind info found is indeed the same issue, and the solution proposed work
For the clipboard policy, I will do some test later, I modified the default policy to workaround the issue I was having. Without testing, my guess will be that the default policy don’t include rules for custom disposable, (like, create a “web” appvm, make it a disposable template vm, launch a new “web disposableVM” and issue should arise there. But I will do test on my side to confirm that this weekend