X11 has been, and still is, a vital piece of technology at the core of professional Unix-like workstations since decades. It has a proven track record of supporting enterprise-grade applications with long-term protocol stability and platform compatibility. It has matured over decades. XLibre is an actively developed fork of the X.Org X11 server, initiated by the most active X.Org developer and supported by the open source community.
An incompatible alternative, Wayland, is being aggressively pushed by IBM = Red Hat = Gnome = Fedora = freedesktop.org. However, it is not ready to succeed X11 as it its governance model leads to never-ending discussions and prevents even the most essential functionality from existing. Think twice before abandoning Xorg. Wayland breaks everything!
It is time that the open source community reclaims what was ours to begin with. This page lists distributions supporting XLibre so that you can make an informed choice.
--> Table has moved to https://github.com/X11Libre/xserver/wiki/Are-We-XLibre-Yet%3F <--
What "bunch of steps" did they skip exactly? If it didn't have a snowall's chance in hell of getting accepted, that may have been because they don't plan on keeping X11 for long anyway, not because they are hostile towards Xlibre. Granted, there are some users who didn't like it for political reasons, but as explained others had a problem with how the Xlibre developer conducted himself (allegedly) and for some technical reasons. This categorisation that Fedora is hostile is baseless and, at worst, unfair and misleading. If there is proof that Fedora is actively against Xlibre for political reasons then sure, mark it as hostile I suppose.
At least now they are marked as "Not supportive" which is a fairer category than "hostile" is. That said, the Alpine situation sounds like a candidate for the "hostile" category given the admin threatening everyone blanketly with a "coc violation" if they put forth a merge to include Xlibre. That reeks of abusive tactics.