After enabling the foreman-3.12 and foreman-plugins-3.12, apt update
produces warnings like this, and similarly for foreman-plugins

W: Skipping acquire of configured file 'main/binary-amd64/Packages' as repository 'http://deb.theforeman.org bookworm InRelease' doesn't have the component 'main' (component misspelt in sources.list?)

I edited out "main" from the apt .list files to get rid of that.  It
looks as if it applies generally to other foreman and Debian versions.