Manjaro fell out of popularity a few years ago -- in addition to some drama with the handling of community donations, they do some weird stuff like hold back all Arch package updates by 2 weeks for "additional stability"... But really it's just an extra 2 weeks where you don't get potentially critical security updates. I also think the way they handle the AUR is reckless and leads new users to install unstable or poorly maintained packages without realizing it

It's still a viable distro, but generally I think Garuda beats it in every category: still based on Arch with a focus on gaming, but without the useless delay or the other issues that Manjaro has.