For anyone running into this. A workaround is to rename/delete the offending file /usr/lib/llvm-19/lib/libLLVM.so.19.1 after the dpkg error occurs. The file is just a symlink into the arch specific lib dir anyway. Then run "apt-get install -f' again.
I went so far and renamed both versions of that file just to be sure, no one pulls a wrong architecture by referencing this. Probably not needed.