As I was watching Ad Astra (Great movie, but where does the gravity come from?), I had the idea that in a building or closed vehicle in a low gravity location, maybe air pressure could be used to imitate gravity. Blowing air directly from above towards the floor could maybe create a gravity-like effect without any need for e.g. magnetic boots or spinning for artificial gravity.
For example, on the Moon, Mars, or a spacecraft. Think of a room for example 7m x 8m, with the ceiling at 2m height. From everywhere on the ceiling there is an air current towards the floor where there are vents for recollecting the air and sending it through pipes back to the ceiling.
The air current from the ceiling could be either the same wherever the person is in the room, or it could follow the person to only push from directly above the person. It could even be adjustable by the room owner or the person theirself.