Hi !!!
I agree with the previous post: I dislike feminine names when they seem just a masculine one switched.
Mattea seems dated to my ears. I can see it on a woman in her 50s or 60s but not on a girl. On a child is simply horrible.
Tea as full name would be better. Infact it is increasing in popularity here and in 2016 were born 94
Tea while in 2017 they were 92.
Personal Name Lists
https://www.behindthename.com/pnl/125456