Why you shouldn't use Manjaro.
• Manjaro is based on a rolling release distribution called Arch. The thing about rolling release is getting the updates as soon as they are out, whereas Manjaro holds them back for a week without a good reason. They don't check them, do anything with them but instead hold them back.
• It has had many issues that you wouldn't have had on Arch.
• It's branded as beginner friendly (which also people here recommend) but rolling release isn't for beginners.
• Uses pamac as an AUR helper without telling users how to help them and also advises to install it with methods that are warned against in the Arch wiki.
This is in no way a manjaro bad arch good post and instead I would advise most people not to use Arch but don't recommend Manjaro to beginners and don't use Manjaro yourself. There are way better distributions out there such as KDE Neon, Lubuntu, openSUSE etc.