Hi,
Reading the report, this feature was announced in the Trixie release notes.
You may want to consider a backport to Trixie.
I was checking that enable-cet could cause plugins or libraries loaded with dlopen to fail, while enable-cet=permissive deactivates CET while dlopen gets executed.
As per other distros, checking provided Fedora link and SUSE, both seem to set enable-cet in their strict version (probably after they have rebuilt the archive with permissive option).
 Héctor Orón  -.. . -... .. .- -.   -.. . ...- . .-.. --- .--. . .-.