Doomsday 2.2.2+ds1-1 is now possible to find and install through Gnome Software on Ubuntu Focal. Didn't find an explicit mention of this in the changelog, but I assume the 2.x version fixed the metadata.
** Changed in: doomsday (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1589824 Title: Gnome Software catalog entry missing for Doomsday To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/doomsday/+bug/1589824/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs