I no longer use Qubes-OS* but still watching its developments with great interest

https://www.qubes-os.org/news/2020/06/22/new-qrexec-policy-system/

* it worked like a charm for me for about a year but then I found out that hardware access is restricted which makes using any 3D software impossible, and I needed it for my cave surveying work. A proper design decision in Qubes, just incompatible with my usage profile.