This seems interesting but I was curious how browser updates work (Gobo doesn’t seem to be a rolling release as far as I can tell). As far as I can tell you just use the binaries that Mozilla provides (which is fine) but I guess you have to put it manually into the new directory structure?
While doing some searching I came across this old Reddit thread: https://old.reddit.com/r/linux/comments/b6du1k/anyone_using_gobolinux_daytoday/
You might just use /Programs/Firedox/Latest/ as the installation location and use Firefox auto update on Linux which just patches Firefox in-place. I don’t see much need to version it anyways, if you don’t do webdev.