What does it mean by removing X11 support?

Yes! The Xserver does the link to hardware and Xclients send their output to the Xserver.

The miss-understanding/interpretation comes about when you are running "remote X" (export DISPLAY=....). Now you run the Xserver locally and the Xclients are running remotely but displaying locally.

You can ssh into a remote box and daisy chain ssh sessions and still get a local X display for a client, if you are careful, even if the remote box does not have a graphical terminal. It will also be bloody slow. Having said that, modern internet connections are 1+Gb/s, which nicely glosses over a protocol developed in the days when LANs with 10Mb FD was a bit of a luxury. The cool kids got the 100Mb FD connections with their swanky PCI based Cisco 595s instead of a ISA based 509. Actually, X is even older than that funky late 1990's gear.

I shouldn't bother nowadays unless as a last resort. MeshCentral does the job, rather better!

Its tools for the job. I have a screwdriver that is an antique - it was my granddad's, then my dad's and I'm 54. It still works but it is a flat 1/2" bit and most screws I deploy are PH or torx. However, if I can, I love to dig out old Betsie because I'm a human and the handle is lovely to ... handle.

I still run X sessions across my home LANs because I can and in the case of MythTV (int al) - rather necessary if the server has no local display.

I rather like the old school charm of running X clients but it is just that - old school. I grew up when records and then tape was your only choice for music and the web did not exist. I do not now own a record player. I have converted my CD collection to FLAC.

So, I shall wipe a tear from my eye for X11 and Xorg (I barely noticed the passing of XFree86). If people who know more about this stuff than me and are prepared to slap code into a repo - then that's all good by me.

I remember when Linux looked shite, really shite on X. Funnily enough some console drivers with a good config got it right and looked lovely. Nowadays I have absolutely gorgeous founts and all sorts of funky stuff going on my screen. I'm happy to wait for the WL boys and girls n that to get things thrashed out. Its a really hard project that is progressing nicely but needs more time.

Sorry about the fount affectation!