Ahhh, a fellow migrant from Ubuntu. Don’t forget, if you are having Bluetootht troubles to modify /etc/bluetooth/main.conf so that autoenable is both decommented and set to true.
I was in the same boat as you. Kind of still am, but I’ve got my sea legs well enough to make my way around at least. With how homogeneous Linux systems had become these days a lot of your skills from Ubuntu _will_m carry over, just without specific Ubuntu utilities.
That’s alright anyway because of how great Pamac Manager is compared to Update Manager. Extra pro tip for you; follow this guide I wrote for better audio.