“Hey, that Nitecore with the pocket folder form factor is cool, but I want something smaller to supplement the light on my phone. Something rechargeable. Any suggestions?”

Have a look at the Nitecore Tiki LE. It’s 300 lumens, rechargeable, and smaller than a AAA battery. They aren’t usb-c, but whatever man… It’s a $20 torch.

Oh… and I’m not paid by Nitecore or anything. It just so happens that this torch is made by them as well. I don’t have any experience with it, but the reviews hold up.