Onewheel Pint! It was the ultimate quarantine toy. I saw so much of my city I hadn't seen before and it did a great job of getting me outside in general.
Safety wise, yeah wrecks on onewheels can be bad. If you are a speed demon you will break something. If you are careful you should be fine. A set of fangs on the board and a pair of wrist guards are highly recommended. And a helmet at all times.
It's not too fast and it doesn't go very far, but this hasn't been limiting so far. My legs get tired before the battery runs out.