I like to bike when I can, but I’m still nervous to leave it even with a U-lock around the frame. I’ve also had a seat stolen before (not even a good one), but I’m not sure if there’s anything reasonable to do about that.
What do you do to lock up your bike for commuting?

Generally my process whenever I park my e-bike is U-lock to bike post/rack and remove the pedals. If I’m feeling a bit more paranoid, I’ll also set it to class 1 to disable the throttle.