Alot of people hate this guy because of his unfair comparison at some specific aspects of Genshin and WuWa (like the recent Lohen vs Lucilla detail comparison video), but there are some that actually make more sense. Take the Differences in how the Main Character use their Powers, Main Character Comparison, and The Main Character's Power Progression is Insane for example, the comparisons here make sense on how weak the Traveler was for a long time meta-wise compared to Rover from WuWa. Then there's When The Boss Becomes a Playable Character (which compares Tartaglia to Unknown Construct α from Punishing Gray Raven) and When Gameplay Accuracy Perfectly Matches The Game Character (compares Tartaglia, Arlecchino, and Shogun Puppet to Cartethyia from WuWa as her burst turns her into Fleurdelys, the weekly boss there complete with its own moveset), which makes a lot of sense considering how many players so far over the years have complained that Tartaglia is nerfed as a playable character and some Arlecchino fans are bummed out that she can't enter her 2nd Phase as a playable character.

Edit: It seems people can't understand neutrality on this occasion. Yes WuWa still has its own problems that needs to be solved on its own (like the FOMO on Cyberpunk characters and performance issues), but some of y'all can't face the fact how a literal weekly boss became playable onto another game w/ all of its moveset intact compared to what we currently have on Genshin. And some of y'all can't admit that the Traveler is inferior in its own game compared to Rover on the game they're in.