something just feels ’off’

Sounds like very personal subjective experiences. I think your question makes more sense asking why do Mosques make you have such feelings. Personally, I don’t experience the same feelings when I look at the pictures you posted. I’ve never been inside a mosque so I don’t know what that would be like in person.

I’ve read that most religious buildings are designed inside to give you feelings like grandeur and solemnity and use cultural cues to do that. Culture cues certainly will differ across cultures. So maybe it’s just that.