Maybe I was a bit unclear. I meant that
Noa is really more popular for girls in most countries.
Noah, I agree, gives of a more masculine vibe bc of its usage for boys, even though it strictly speaking isn't (acc. to the entry of Noah(2)).
Noa without an -h can hardly be described as a masculine name turned feminine.
Noa isn't even listed as a variant of Noah(1) and I thought the conversation was about
Noa not
Noah.