The AMLGX images for GXBB/GXL/GXLX/GXM/G12A/G12B/SM1 boards in my test share have been updated to Linux 7.3-rc2 and contain "some improvements" to hardware decoding capabilities.
I've been testing with GXBB and G12A/B so GXL/GXM/SM1 are not fully tested, but feedback would be interesting.
If you encounter media that doesn't play, I'm interested in 1-5 minute samples that demonstrate the problem.
Enjoy 