Bringing in youtubers to do voice acting is generally an extremely bad idea because they're generally not good at it. This isn't a dig at her personally, I haven't heard her voice in the FF7 remake and she might be good, just this very strange trend we've been seeing lately.
She seems to be a professional actress though.
Bryan Dechart who plays Connor in Detroit is also a Youtuber/Twitch streamer on top of being an actor. Same for his wife.
Anyway, as for her voice as Aerith, it's much better than Mena Suvari's performance in Kingdom Hearts II. Then again she didn't exactly set the bar high, since it was awful imo.
That said... while I don't hate it, I also don't like her voice (a bit squeaky) or acting in the trailer either.
But I always like Maaya Sakamoto's work, and this time seems to be no exception. (Lunamaria in Gundam SEED, Aigis in Persona 3, Lightning in FF XIII, etc.)
Here's a comparison.
I get if some people don't notice a notable difference. But I do.
And generally speaking, in Japan their voice actors tend to have greater range in their acting (mainly for mediums like anime and Japanese games where they speak a certain way) because in Japan voice acting is an actual career that they go to voice acting school for. Wheres in the west, people get into it because they saw an add for it, and applied.
Something that illustrates this is if you look at all the voice actors Aerith has had in English vs Japanese.
In the west they keep replacing Aerith's voice actress.
But in Japan there's only ever been one.
Maaya has been Aerith in everything.
(Including Kingdom Hearts, which isn't listed there since it's just Final Fantasy games.)
I hope there's a Japanese language option in the game. If there is, I'll play it in Jp the first time around, and English in a replay.
If there isn't, I'll probably buy the Japanese version.
I'm the opposite. I get "voice actor fatigue" if a voice becomes too prevalent (same reason Troy Baker and Laura Bailey started to grate on me, though in Laura's case it was a retroactive grudge once I found out her first role was Fruits Basket, urgh!)
Maaya is one of those instances. Maaya, Kana Ueda, Chiwa Saito, Kosuke Toriumi, Masakazu Morita, Fukuyama, Sakurai, Hikasa, Ito... get out of the spotlight damn you! I want some fresh talent! Don't make me bring out the cane!