Similar ask HN have been raised a few times before, but with much more people working/walking home many may have tried a treadmill whilst working.
https://news.ycombinator.com/item?id=5140019 [2013] https://news.ycombinator.com/item?id=9174746 [2015 - Neal Stephenson] https://news.ycombinator.com/item?id=18663873 [2018] https://news.ycombinator.com/item?id=23738023 [11 months]
Co worker recommended to me, and now I to you.
Use it with a standing desk to make it a walking desk, but also can be jogged on (up to 5mph I think).
SUPER thin so you can stow it away under bed, or lean it up against wall.