the creator 3 and the qidi max are totally different machines.
Also widely seperated in price :-)

One is an idex machine with two independant extruders and the other is a single extruder.

I believe that you can use an external spool holdere with the qidi, which would probably be my choice anyway.

Both machines from reputable companies, similiar print sizes. If you don't need idex - then the qidi is less than 1/2 the price of the flashforge.

Plus the qidi comes with a high temp, all metal extruder - damn useful.

If the filament does get stuckj behind the spool - it would be an easy fix and no doubt plenty of mods to fix it already on thingiverse.