Quote Originally Posted by Cavsfan View Post
It took me awhile but, I finally figured out what most people probably already knew.

When I customized Xubuntu 20.04 grub the menu would always never show, so rather than delving in to see what the problem was I had my grub on another system that didn't do that.

Anyway, I err um, stumbled upon the fact that if I pressed the ESC key the menu would show. Figured out why that was in /etc/default/grub:
Just needed to change this:
to this:
Then everything worked like it should.
Turns out my 18.04 install had this same issue. That should solve it and I updated the Wiki.
If anyone has any problem on any version let me know.