I’d disagree here. A topic might have a good answer, but the OP didn’t bother to mark it as solution/solutions weren’t available if it’s an older topic, etc.
An open topic has the pro that you can bump it, but I wouldn’t put too much weight on that. I’d rather prefer to see the more relevant content based on keywords.
Regarding archived I agree - to me this is content that isn’t relevant any more and can have less weight.