Arvind Mahadevan has an announcement:
We are pleased to announce that we have worked with both SUSE and Microsoft engineering teams to release the latest SQL Server 2022 on SLES v15 SP5 Azure Marketplace image. This is in alignment with our goal to have the latest SQL Server on Linux Azure Marketplace images.
It’s a short post but does give us an idea of where they’re at on Linux support. Support for Ubuntu 22.04 is still in preview, so I’d expect that to come out soon as well.