For some reason, Apport wasn't able to open /var/log/boot.log (maybe I missed a password dialog?), so here you go.
** Attachment added: "boot.log" https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1973150/+attachment/5589079/+files/boot.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1973150 Title: Fresh encrypted installation, no field is displayed for entering decryption password, but blindly entering the password succeeds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1973150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs