Never mind. During one of the last t64 upgrade orgies package gpg-sq got installed on my system and succeeded to install the diversion to /usr/bin/gpg. And the sequoia replacement is not very feature complete, as they continue to stress themselfes.
For example, referencing a recipient by exact name with "=<recipient>" does not work in gpg-sq, either. I just purged gpg-sq and its dependencies and now I'm back to normal. Feel free to close this issue.
