My favorite: poweroutlet.type.f.square.fill

other options:

• poweroutlet.type.b: maybe too much of a ghost
• 01.square: because binary
• square.and.at.rectangle: looks a bit like a drunk robot

Yes, please! My Apollo muscle memory keeps fooling me. Now that you implemented the forward jump my naive guess is that backwards is basically free. Thanks OP for your hard work!

Long press on the button should jump to the previous main comment.

Yes! And please, long press on the button should jump to the previous main comment.