Under Ubuntu 22.04, when Skype is installed as a snap, some menus are blank (+ it keeps freezing the entire computer sometimes). There’s a simple workaround [1]: disable “access to opengl” in the snap store properties. I don’t know, yet, what else this’ll break… but we’ll find out soon.
[1] Some snap application menus don’t display properly in 20.04.2 LTS with MATE 1.24.0
https://askubuntu.com/a/1402659/1018183
George's Techblog 