It's now getting to the port where its sort of fully functional. In several more years maybe we'll be to the point where users don't need to learn about the plumbing like X was 14 years ago.
Fully functional: Performing all required functions. X is fully functional now. It was fully functional in 2003. It will be fully functional in 2032. It's feature complete and receiving security updates as recently as 30 days ago and is liable to receive them as long as Canonical and Red Hat have supported customers using this or around 10 years from Ubuntu 22.04 and RHEL 9.
Wayland proponents having failed to convert people to using Wayland by version of superior functionality have no resorted to claiming the technology used by 60% of users either doesn't work or will stop working real soon now.
I'm sitting here on a modern computer. It is connected to 2 4K monitors and a 1080p monitor. Everything is scaled perfectly despite the 2 screens being very different DPI. There are applications to perform all the normal bog standard operations from managing files to watching movies not to mention apps for creating applications, making movies, editing photos, making music, playing tens of thousands of games The full range of software that is available for Linux runs under X less a microscopic number of items literally designed to replace pre-existing X software for instance sway to replace i3 or a foot a terminal emulator for wayland.
X works on stable slower moving distros where wayland presents a more buggy and less feature complete experience because basic functionality requires recently released updates whereas stable distros may be a year or more behind.
X works well on Nvidia hardware which represents over 80% of discrete cards and is literally the only professional GPU anyone uses for any usage other than just driving displays.
What "typical uses" do you imagine aren't covered? The problem with wayland proponents is not their enthusiasm its the fact that they lie so much.