It depends a lot on the strength of the underlying layers.

If it is just cement, it takes bits of dust/debris with. If it is stained wood, it can peel some of the stain off if it is left on for a while. If it is painted drywall, it can peel off any little bits of poorly primed paint unless a heat gun is used to gently remove it by softening the adhesive (even this can be tricky though…). On glass it’s perfect :)

For a robust epoxied wooden gym floor, it would be a clean removal.