COVID IR Slots?

Hey Footclan, newbie member here, long time commissioner of a casual league with friends and family.

I’m curious as to how you guys are setting up your leagues in preparation for this year’s pandemic-driven NFL season. I heard that some platform are designating 3 IR spots which can be used both as a normal IR spot or if a player comes up with COVID and ends up on COVID IR. Do you feel 3 is enough? Do you have any other suggestions as to how to mitigate this crisis?