All applets once installed appear in Budgie Desktop Settings - Panel - Add applet when you logout and login. You may have missed that bit at the top of the budgie-applets window 
Ok now I see it. I was testing with Firefox and apparently (and unfortunately) it doesn’t work. But with Libre Office it is just fine. Thanks!
check if there is a difference in behaviour between the snap version of firefox and the repository (debian) version of firefox
Hi. Problem with global menu cutting is resolved?
it works if you place the global menu in the center. There is a fix that is needed to make it work on the left or right hand side of a panel. Patches are welcome to support this
Thank you very much. I’ll try
It works with Firefox.
( no snap here )
Discussion closed / limited for the moment.