So you didn't read what I wrote upthread a few days ago? All Trump has to do is sign a document and the backpay guarantee goes away. They are literally wiping out departments and firing people without any regard to the laws and processes that normally apply. And except in a couple extreme cases, nobody is intervening. Considering his personal friend now has control of the Treasury, I wouldn't even bank on receiving any backpay. (Not like we have any power as workers to stop it, either)
All bets are off, and don't expect the slate book- regardless of extension- to be a barrier to any whims of the executive. He already signed one doc that says basically contractually agreed to telework was unlawful unless his admin specifically approves it.