MuseFX Rotary demonstration

MuseScore 4, currently still in beta, comes with a number of VST3 plugins, mainly simple, easy to use one-knob plugins.
musescore.org/...
Scroll down until you see:
"Windows - www.dropbox.co....
Mac - www.dropbox.co....
Linux - www.dropbox.co...."
Once you have Muse Hub installed, open it, then go to the 'Effects' tab to install them.