You can still play offline modes like Kick-Off, Career Mode, and the offline World Cup tournament.
If you have a physical copy or an old digital installation, you can still check for the latest available patches:
Moreover, the success of the FIFA 18 ROM update set a precedent for future games and updates on the Switch. It demonstrated that even in a more constrained hardware environment, it was possible to deliver meaningful and impactful updates that could significantly enhance the gaming experience.