I use two packages that I'd like to see in Manjaro's default repos:
pamac-classic : a fork of the old pamac's gui. Pamac reminds me a store nowdays. I found the old pamac more minimalist and intuitive. At least, If you don't want to add this package, I'd like to see a classic mode gui for the current pamac version.
gtk3-nocsd : I really missed the package gtk3-classic (aka gtk3-mushrooms), deleted from manjaro's repos some months ago.
I hate CSD, because I cannot use all the functions of my favorites windows managers when CSD are used by programs.
So, gtk3-nocsd makes my use of the desktop more simple & productive, even without use gtk3-classic.