In my experience they nearly all require them. I've also encountered a couple cases where they said they didn't, and then someone gave me a coding challenge any

In my experience they nearly all require them. I've also encountered a couple cases where they said they didn't, and then someone gave me a coding challenge anyway. I've always been bad at these, which is super frustrating for me, but it's the way it goes. I gave up trying to fight it and instead started making notes of which problems I did poorly at, and started practicing those. Going through the cracking the coding-type problems helps too.