Comment 8 for bug 1882474

Sorry for the delayed answer. I was in trouble with my laptop.

So on Mint 19.3 the 2.4.0-alpha-pre (build master r7493) shows F11 for the fullscreen but it is not working.
In the menu the shortcut printed is F11 for the fullscreen. All the rest options printed are :

Show skin settings Ctrl+1
show microphone Ctrl+2
Show vinyl control Ctrl+3
show preview deck ctrl+4
show cover art ctrl+6
Maximize library space
-----------------
View fullscreen F11

F11 is not working.

Something very weird happens.
upon start of the program in the view menu all shortcuts and checkboxes are working except F11. The fullscreen option can only be selected by the checkbox. BUT...
After the first activation-deactivation of fullscreen (by the checkbox since F11 is not working) then ALLthe rest checkboxes appear all unchecked and they stop working and also no shortcut is working in view menu any more.