This has been bit delayed but we are intensively working on our ADFS 6.0 themes. Indus is the first theme added to the store for ADFS 6.0 (Windows 2022) logon themes. We are working on other themes and committed to add them sooner as possible.
We placed all upgraded version 2.0 themes for RDS 2022 (Windows 2022). These themes are compatible with latest RD Web Client upgrade; however there are no changes on RD Web Access part. It also works well on your older RD Web Client version so both existing and new customers can use these version 2.0 themes.