Genshin's the only gacha I currently play. I used to play Tales of Link, Tales of Crestoria (dropped after a few days lol, that shit was a buggy mess), Final Fantasy Brave Exvius, and Magia Record. Any time any of those games had PvP it was a fucking nightmare. Tales of Link locked a whole game mechanic behind PvP ranking events and you were essentially forced to use refreshes to get the top rewards. Brave Exvius' Dark Visions made me quit the game entirely, it was the same shit where unless you were a whale spending on every new banner there was absolutely no way to get reasonable rewards from it. Magia Record's PVP involved people building the most stally, irritating teams possible and wasting your time.
I've never seen a gacha actually do fun PVP. Maybe it's different with a real time combat system but I don't have a lot of hope the whales won't just roflstomp everyone else.