By itself, it’s does not solve anything.

However it gives some extra data that can be used by the printer firmware.

The NFC tag contains data about the right printing temperatures, the color, the amount of filament left in there spool …

So a lot of QOL features can be developed with that. For example

• having a message of the amount of filament left in not enough to finish the print I’m about to start,
• auto adjust temperatures depending on the loaded filament,
• importing a library of available filament in the slicer just by taping the spool on the NFC reader.
• using this library of filament for multicolor/multi material printing. So instead of printing selecting each head individually in the slicer and then having to remember to load the right filament, right color in each head you can just select the filament you actually want and the printer will manage.