I haven’t played Genshin in a couple of years but it’s definitely one of the better ones from what I’ve seen. I played through f2p until I had a sense of the game and was confident in the content and monetization model. After that I did spend whatever it was, five bucks(?), for the “battle pass” but honestly as long as you have the time to grind then Genshin is fairly non-invasive. That grind is why I quit though, the end game was a slog.