So far we haven't seen any GPU-based video decode support for VVC/H.266 with this video compression format only having been finalized in 2020. Even among CPU-based encoders/decoders for this H.265/HEVC successor they aren't too mature and optimized yet. But with Intel engineers having now added a VVC interface to libva, it looks like GPU-accelerated VVC playback could be arriving for Intel graphics within the next generation or two.
The libva 2.22 support just adds the new interface/API around LibVA VVC support while it's still up to the actual VA-API hardware drivers like the Intel Media Driver to implement the interface where supported/capable.
Another notable addition with libva 2.22 is adding support for the Linux DMA-BUF protocol use when running on Wayland.
Downloads and more details on the libva 2.22 release via GitHub .