I tried the ‘Arc menu’ extension from Manjaro (version 14) with the Dash-to-Panel extension. I can’t use any menu layouts under Manjaro Gnome 40 (Linux Mint menu , Windows menu, …). I’ve got always the default menu from Gnome (full icons). Is Arc Menu compatible with Gnome 40 ?
Well, I was on the Manjaro default Layout and I switched to the traditionnal layout. In this case, it works without problem with the ArcMenu extension and with the Dash-to-panel extension. So, if you want to use ArcMenu extension correctly, then switch to traditionnal layout in the Manjaro Gnome Layout Manager.