mpv
Install mpv
echo "media-video/mpv vaapi" > /etc/portage/package.use/mpv
emerge --ask mpv
Example configurationf for `mpv``
cat << "EOF" > ~/.config/mpv/mpv.conf
# HDR & Videoinställningar
vo=gpu-next
gpu-api=vulkan
target-colorspace-hint=yes
hwdec=vaapi
tone-mapping=bt.2446a
hdr-compute-peak=yes
video-sync=display-resample
EOF