At the time of this article's publication, TFE does not officially support RHEL 8.8 and newer.
Our comprehensive list of supported operating systems can be found in our documentation here.
Once the underlying Replicated container orchestration software supports RHEL 8.8 and newer, TFE will be officially supported there as well.
At present, there is no timetable for when/whether this will be implemented. If this is updated, it will be viewable in the Replicated release notes here.
Some customers have had success in deploying TFE on RHEL 8.8, but this isn't formally supported by engineering in the event that OS compatibility issues arise.
In the future, it will be possible to leverage Flexible Deployment Options in order to use the operating system of your choice to deploy Terraform Enterprise.