Stuff doesn’t stay put on the ISS either. Even if you could let go of something with zero velocity relative to yourself, there are air currents to keep the air safely mixed. Astronauts have Velcro to keep stuff in place. Special fireproof Velcro, IIRC.
You're right. But I'd still go far with the ability for things to stay roughly where I let go of them, for about a minute or two.
Velcro is nice too, but it also depends on the microgravity environment - even if I lined every object and every vertical surface I could find with velcro strips, many of the objects would be too heavy to remain in place in 1G.
