There’s a lot of words but little truth.

- Schedule F employees can be fired without due process.

- Additionally, 5 U.S.C. § 7513 allows for the removal of employees if it promotes the efficiency of the service (basically layoffs - and that is what Trump is doing).

- probation employees can be fired

In short no federal employee is fired unlawfully. But if Im wrong there have to be an example and courts can easily intervene (and they did in some other cases).