A note can be marked for review

review: x

You can use relative time marks to snooze them until next time

review: 3w

After a while you might decide to set a regular review process

review:
  period: 1m
  done: x

Once again, it is more practical relying on the scanner to sanitize values. The last example was incomplete, a review needs to know when it is due and when it was done.

review:
  period: 1m
  done: 2024-01-01
  due: 2024-02-01

On your next review you just need to set done: x and let the scanner upgrade the values for you.