Thanks Daniel! I applied it in https://salsa.debian.org/mariadb-team/mariadb-10.5/-/commit/061acd336f7cdaa16ff0271feafce4a2551ab903 and tested on Launchpad to ensure that it does not at least regress :) https://launchpad.net/~otto/+archive/ubuntu/mariadb/+builds?build_text=&build_state=all
I will soon upload mariadb-10.5 1:10.5.5-2 and then we will get a result of all archs.