Recommend PETG
Where a full/mostly full spool can unwind due to the gantry movement at the start of a print. The filament gets wrapped around the arm and then causes a jam.so you need tension holder prevent it.
The spring loaded tension holders can be bought separately from the ams, so you have a tentioned holder.
https://store.bambulab.com/collections/accessories-for-a1-mini?page=3