while it’s easy for me to understand (and explain to others) the measurement units of spatial rotation - degrees,
I don’t quite understand what are the units of moving a spatial for example - I can move a spatial on the X axis +2 units but what are those units?
I hope the question is clear.
They are what you want them to be.
Does 1 unit mean 1 meter? One foot? One inch?
…depends on your models and scene, really. What size are they?
Usually it’s meters. The physics engine will think it’s meters.
To reinforce what Paul said.