[taopai]

You are right.

If you okupas you always ocupas. But you can ocupar without okupar.

The k differences the political movement from the physical act of using a property which is not yours. Okupas don't promote squatting in a small owner property. They promote using unused properties from banks.

In fact in Barcelona there are la Oficina d'okupació:

https://radar.squat.net/ca/barcelona/oficina-lokupacio