I’ve been testing Manjaro Gnome using liveusb for a while and I’m tempted to install it, but I have encountered a problem connecting my controller that kubuntu didn’t had.
In kubuntu I just connected my controller using a USB cable, clicked on trust and authorize, disconnected the USB cable and then, my controller connected using Bluetooth, this worked even on kubuntu liveusb.
Manjaro on the other hand never shows this message to trust and authorize, apparently this pop up appears on the Bluetooth settings on gnome but it never shows anything.