Why do I expect that Genshin is going to try and push their retarded E-sports plug again since it's Twitchcon, if so I guess they deserve to ignite a second pile of money aflame sponsoring streamers and then being so shit of content you can't even do good reacting to it because there is just nothing there.
I like Genshin, as well as HoYoVerse's other games, and while I may not be a whale I have spent quite a bit over the years and years of content across the three (HI3rd, HSR, GI), so I think I'm in a good position to say:
nobody wants to watch Genshin eSports
people who watch Genshin streams do so for the drops, or if it's their go-to content creator, so take this as an excuse to mess around in the game for 3-4 hours while people get their drops
if there must be a competitive angle to the stream, make it something like "Teapot Decoration Contest" - in which they take an empty plot and build up an entire home based around only what they have crafted/obtained through their time playing the game
this could also provide the opportunity to flex, since some housing items are locked behind events that have long since passed, and crafting a single housing item takes 15 hours of real-world time (limit five at a time), so even the sheer amount of furniture and decoration could also be used to show their dedication
for maximum fun, the devs can give them event accounts that have unlimited amounts of all housing items unlocked, and they're told to go crazy within the time period, and the best designed teapots "win" - maybe even throw in some curveballs like their chats are able to vote on what items to use through the widget, which would grant them an additional drop for voting
all it takes is a bit of creativity to make these Genshin "eSport" events something people would actually want to watch, but that's up to the people signing the cheques, who probably care more about trend-chasing than sponsorship stream audience retention (though to be fair, they probably correlate the two, even if they don't fully understand the "hows" and "whys")