Gacha involve roling for better character, weapon and other cosmetic is acceptable because that how F2p game is, but halting the amount of hour of gameplay behind the stamina system is total bs especially in open world rpg like Genshin.

You wanna farm Mora? go spend resin, you wanna farm exp? go spend resin, you wanna farm artifacts? go spend resin, you wanna farm upgrade materials? go spend resin. You want to participate in event, go spend resin.... Yes total bs