I remember during Genshin's release, Zelda BOTW fans were outraged and even when to one of Genshin Cons and just did a rally there about it. While Genshin did take a few (well a decent amount actually) elements from Zelda BOTW, you still can't really deny that Genshin is its own game especially if we're talking character design, not to mention the story itself is like an anime series worth. Both games sets in a fantasy world but has their own premises and goals, it isn't uncommon anyways that a game would take A element to their games nowadays. Overall tho I still think they're 2 different game, with different marketing goals, different content, etc.