Does the ShotCut support hardware encoding into the AV1 format using AMD video cards such as RX7xxx under Linux? If not, will this happen in the future?
Read this post:
The linked post is about Windows, but the Linux support will come initially through VA-API. Like the other post, it might already work in some builds if you look in Export > Codec > Codec instead of the dialog. The latest version includes FFmpeg 6.1 that added support for it (AV1 in VA-API). However, it might require a newer version of the VA libs than are included in our portable, AppImage, and Snap builds that are based on Ubuntu 20.04. Your best bet is through Flatpak or a distro-provided package.