Do you use it?
Nope.
What are your problems with it?
If you meant problems from usage; none, as I'm not using Manjaro.
Besides, I don't need to use Manjaro to state the problems some of its users have experienced.
Btw, I've read your comment(s) under this post in which you clearly outline your thoughts on Manjarno. Thank you for those insights! My only question at this point would be have you (or whosoever) voiced this to Manjarno's maintainer?
I say this, because I believe this approach to be a lot more effective and productive than discussing this with random people on Lemmy. Heck, one of Manjaro's contributors has opened issues in Manjarno and it has gone as you'd expect; i.e. the truth prevailed and Manjarno changed some of its content to better represent reality.
Or, have you (or whosoever) considered writing up a 'Manjaryes'? In which, most misconceptions regarding Manjaro are addressed and discussed.
As others have stated, reviving them through Linux should be a piece of cake.
However, how many is "a tonne"? This is important information for the community to provide recommendations on administrating those systems.