vc4 and freedreno have been provided by mesa-dri-gallium for a long
time.
mesa-dri-intel subpackage has been deprecated for a while (previously
dependend on dri-classic and dri-gallium)
mesa-dri-classic drivers is removed because mesa upstream has removed
those old drivers from the tree. They've been replaced (for not-ancient
hardware) by gallium.
See also https://gitlab.alpinelinux.org/alpine/aports/-/merge_requests/31848
91ca0bfa01