Starting from FF 116 there is v4l2-ffmpeg hardware video decoding flag, currently and by default it come with vaapi-ffmpeg enabled but this is not useful on arm because vaapi it only for Intel and Amd gpus. v4l2-ffmpeg is not compatible vaapi-ffmpeg so both can not enabled at same time so vaapi-ffmpeg need to be fully disabled to v4l2-ffmpeg work.
v4l2-ffmpeg is useful to Purism Librem 5 device.
Starting from FF 116 there is v4l2-ffmpeg hardware video decoding flag, currently and by default it come with vaapi-ffmpeg enabled but this is not useful on arm because vaapi it only for Intel and Amd gpus. v4l2-ffmpeg is not compatible vaapi-ffmpeg so both can not enabled at same time so vaapi-ffmpeg need to be fully disabled to v4l2-ffmpeg work. v4l2-ffmpeg is useful to Purism Librem 5 device.