I've interviewed and been interviewed countless times in the last decade and maybe once I've worn a full blown suit. I don't have a problem with them, but I don't want to look like an asshole when everyone else is running around in hoodies and jeans.
I usually just step it up a notch from whatever the regular office attire is there (either by asking my point of contact or having known the office). If it's full SV/hobo style I'll do a polo and nice jeans. Business casual and I'll wear a nicer shirt and some khakis. If I really have no clue I'll go slacks and a dress shirt.
In my own office (we're all remote) I still wear jeans and a polo most days. Usually just out of sheer laziness.
Haven't worn a suit for an interview in decades. Last interviews, I wore a jacket and tie. I knew I'd be overdressing and certainly didn't need to. But it generally doesn't hurt to signal that you're taking the process seriously.
I've interviewed plenty of folks in the years since and they do pretty much the same. I'm not going to dock people because they approach an interview formally.
I usually just step it up a notch from whatever the regular office attire is there (either by asking my point of contact or having known the office). If it's full SV/hobo style I'll do a polo and nice jeans. Business casual and I'll wear a nicer shirt and some khakis. If I really have no clue I'll go slacks and a dress shirt.
In my own office (we're all remote) I still wear jeans and a polo most days. Usually just out of sheer laziness.