DrumGizmo not listed in Ardour's plugin list


I am in the process of switching from Windows/Cubase to Linux Mint/Ardour.
I have installed DrumGizmo through Software Manager in Linux Mint, but when trying to add Midi track in Ardour, DrumGizmo is not listed.

I did Re-scan plugins in Ardour, but it is still the same.

As I am new to Linux, I am not very familiar using Terminal, but I managed to execute
this command: ls /usr/lib/lv2 and it showed me drumgizmo.lv2 so I am assuming that it is correctly installed?

Can somebody help me to figure it out?

Ok, it seems like it was problem with Ardour being installed through Flatpack. All good now.