Sounds like something written at the likes of Manjaro which differ enough from plain Arch for it to be problematic.
To be honest, with EOS the point is moot - they have their own excellent forums and if you do insist on going to the Arch forums, just say you’re using Arch.
I had Slackware running on a couple of 386 machines with 200MB hard disks. It was impossible to do almost anything as it was all compile from source but I didn’t have the disk space to install all the compiler tools and what I was trying to run on them. I was originally going to use them as part of a distributed system for my degree, but in the end I didn’t use them and did something different instead.
I used CentOS at work a lot for several years and liked it, but only fully switched form Windows at home 10 years ago and I went to Ubuntu at the time. Installed KDE on it, messed around with i3 and had a great time. I then went hopping and landed on Endeavour OS which I’ve been really enjoying for many years now and have no intention of moving from. All my servers still run Ubuntu LTS Server as it has been unbelievably solid.