Tray Icon/Task bar Icon Linux

Hi, when I start Cryptomator, I have 2 task bar icons:

Is it possible to remove this “Java-Icon” from the task bar?
I tried the hint with the file /home/AName/.local/share/applications/hide-JavaEmbeddedFrame.desktop
but it does not work (after restart of the system).
Do you have an idea?

Cryptomator 1.5.17
System: Linux Mint 20.2 (cinammon 5)