It doesn't appear to be set and additionally I don't appear to have the libgl1-mesa-swx11
package mentioned in that post.
set|strings|grep LIBGL
apt list | grep libgl1-mesa
libgl1-mesa-dev/jammy 24.0.3-1pop1~1711635559~22.04~7a9f319 amd64
libgl1-mesa-dev/jammy 24.0.3-1pop1~1711635559~22.04~7a9f319 i386
libgl1-mesa-dri/jammy,now 24.0.3-1pop1~1711635559~22.04~7a9f319 amd64 [installed,automatic]
libgl1-mesa-dri/jammy,now 24.0.3-1pop1~1711635559~22.04~7a9f319 i386 [installed,automatic]
libgl1-mesa-glx/jammy-updates 23.0.4-0ubuntu1~22.04.1 amd64
libgl1-mesa-glx/jammy-updates 23.0.4-0ubuntu1~22.04.1 i386
This does remind me that while developing a webgl canvas based javascript app the other day I was forced to go into firefox's about:config and set webgl.force-enabled = true. I should have dug deeper on that.
My goal for this system was to eject windows from my life prior to the launch of Windows recall. That and host a bunch of docker containers in an environment more reliable than windows. I got impatient waiting for cosmic to reach full support, but still wanted to go with the distro system76 ships as "theirs" as opposed to putting Ubuntu on their hardware. I haven't checked if cosmic is officially out yet but will likely switch over when it is. I'm a novice with Linux btw. I can use it to host and run my software but wanted a prepackaged solution for my devbox so that I have a much lower chance of breaking it. Also things like my Wacom tablet just worked out of the box, which is all big plus.