Ubuntu 18.04 configure vlc always on top
Solution 1:
You can achieve the first with devilspie or its GUI counterpart gdevilspie. You may refer to this detailed answer by @Isaiah to learn more about how to use devilspie.
Once you're done setting up devilspie, add the following rule.
(if
(is (window_class) "vlc")
(begin
(above)
)
)
Solution 2:
I found an easy way to activate it, via Ubuntu, not VLC. According to maketecheasier and verified by myself on Ubuntu 20:
Click on VLC window
Press ALT + Space
Select "Always on top" from the menu