Has the NFL posted what they plan to do with games that are postponed due to covid? Pushing playoffs further to complete postponed games messes up the fantasy playoffs to the max.
They have not officially released this information. But it is likely that they would move a bye week as was done in 2017 when Hurricane Irma forced a week 1 bye for the Bucs and Dolphins.
Safe to say that this is unlikely to affect fantasy playoffs.