Similar issue, stuck at Sony screen. I removed aliendalvik-control beforehand, but I was having some remnants of flatpak – looks I didn’t remove it weeks before properly. So I saw messages about some libs (but perhaps this was also due to the semi-upgrade?). Got around them by symlink-and-pray
ln -s /usr/lib/libicui18n.so.66 /usr/lib/libicui18n.so.63
ln -s /usr/lib/libicuuc.so.66 /usr/lib/libicuuc.so.63
Now however I am stuck with a broken backend for PackageKit, likely what @abranson mentioned before. Sadly, copying around the ssu file does not help. That’s what I am having now:
Failed to load the backend: opening module zypp failed : /usr/lib/packagekit-backend/libpk_backend_zypp.so: undefined symbol: _ZNK4zypp3sat10LookupAttr8iterator9dip_equalERK13_DataiteratorS5_, version ZYPP_plain