Alpine Linux already switched from fbdev to DRM
The Alpine 3.15.0 release (in Nov 2021) [https://alpinelinux.org/posts/Alpine-3.15.0-released.html] made the switch from fbdev to DRM. There were a few minor hiccups at the time but in general it has worked fine.
Obviously if you have some obscure graphics card without a DRM driver you may have issues (I think one model of Aspeed card used for server IPMI boards only gained DRM support in a recent kernel).
Biting the hand that feeds IT
