Huh, I didn’t even notice wallhaven as the common denominator here. Let me check sth real quick
Edit:
Wallhaven is one of the sites this searxng instance can aggregate results from, which means you can also just deactivate it.
But since I’m a compulsory cache cleaner, I don’t bother, because it’ll be reset to default settings anyway. So I guess I’ll have to deal with big anime boobies.