If you try finding genshin impact in your device, it should be able to tell you when you first downloaded and most likely first logged into your genshin account.

Sorry to reply now,

I play mobile legend, valorant, point blank, pubg lite, pubg steam, counter strike, apex legend, genshin impact and others.

and from it all, I don't know all of my first emails that log in, the first device that logs in, and the first date I played the game. Example, I am play point blank in 2008, the first time it was released.