Since the closure DVC have been waiving holding and returning borrowed points to their original use year when cancelling stays.
As of May 1st, the previous policies will be reinstated.
This is from the website, but buried, I had to search to find it.
Temporary Updates to Our Cancellation Policy
Some of the temporary adjustments made last year to certain Disney Vacation Club policies will end April 30. Previous policies will be reinstated on May 1. Please visit the Member website for details about policies related to reservation cancelations, the borrowing and holding of Points, exchange fees and more.
As a reminder, Members who want to borrow Points to complete a reservation will temporarily only be able to borrow up to 50 percent of their future Use Year Points per contract. Doing this will help manage inventory and accommodate more Members who want to schedule their vacations. Learn more about these policy changes.
I read this last paragraph to mean the 50% borrowing rule is staying in place.
Link to the page, scroll to the bottom.