Common sense abounds on this forum, unlike others I have belonged to
...is it not necessary with easy Arch based distros like Manjaro?
G'day @lekkerlinux and welcome to linux.org
Start a Thread in General LInux if you want more Specifics - https://www.linux.org/forums/general-linux.143/ or maybe in Arch might be better https://www.linux.org/forums/arch-and-derivatives.161/
... so that we don't "hijack" @Xzoma 's welcome
But briefly - Arch have "Pacman Rosetta" - https://wiki.archlinux.org/index.php/Pacman/Rosetta
... which I find good as I move around the Families.
Anything in Rosetta applies to Manjaro as well. In many Linux, you can accomplish things just with the GUI (windows-like point and click), but command line experience is very helpful, and can be more versatile.
https://www.linux.org/threads/lmde-3-cindy.20861/Didn't know you were a Cindy user, Tom, I started off with Betsy