I personally have no faith in Xlibre, its developer(s?) seem inexperienced and their contributions to x11 codebase are of low quality
Thankfully there are other projects around keeping x11 alive:
theres xwayland-satellite, which implements more of x11 in wayland so you can basically run an x11 session with wayland support.
And than there is phoenix, which is a new implementation of x11. Supposedly it shall have none of the legacy garbage code that makes x11 so hard to maintain.

They are throwing away sooo much money by not releasing it widely. Why?