Even though it seems very more doable and less futuristic to be floating, we aren’t there yet. However, having a footrest is a nice step up! It will relieve some tension put on your legs.
It’s nice to feel supported! Two options for you, get a chair that will be there for you for years or add a seat pan cushion to your current chair for some added support!
Premium cool-gel seat cushion Freedom task Head Rest Chair
Liberty Diffrient Smart Plus
If you always strive for perfection, adding a floor mat to your office will be the icing on the cake.