Cardboard spools do work but are abresive enough that tiny pieces come off and could clog up the AMS. There are solutions for this. I’ve seen 3D prints that you can attach to the cardboard spools that allow them to spin in the AMS easily. You could also put electrical tape along the edge or the cardboard spool. Check this out for more details. Polymaker cardboard spools.
Here’s one of the prints Printables. You also don’t have to use the AMS, you can by pass the AMS. This is useful: Notes for AMS | Bambu Lab Wiki