Please add a simple offset for the floor level. When I am seated, I cannot play some games because I can't reach items which are at higher elevation. In some games, the game assumes I am crouched.

A more elegant option would be scale mapping where the system would ask how high the user wishes to be (=height where the headset will be scaled). Then just scale with this factor all heights, keeping the floor level in place. Example:

Floor level at 0 m
Headset at 120 cm (~ seated)
Scaling to 180 cm (~ standing)

Then just rescale all heights with this factor of 1.5x (180 cm / 120 cm). This way people who are shorter or have disabilities or some other reason why they cannot stand up can enjoy all content.

This should be implemented at the CORE or OS level so it is universally available.