I don't claim to understand the business or politics between RedHat and Ubuntu.

I do know many projects with way less resources seem to be able to support Ubuntu and other popular distros just fine. Often through PPAs or their own apt repos (like Docker, PostgreSQL, or Incus).

If RedHat doesn't choose to, so be it. But IMO, they can't really compete with Docker when getting a recent release on the most popular distros is such a major cluster F.