Hey @Lyretta! Sry for the delay.
I have a running configuration and can deploy Ubuntu 20.04.3/22.04 hosts via foreman with some manual steps necessary. I’m currently opening up issues in the foreman community to publish the changes and also the documentation of the manual steps. I’ll try to get the changes cherry-picked for 3.1 too, but 2.6 is out of support as evgeni stated here.
I hope this helps you!