Chevron: The president appoints many judges, who will be overseeing the slew of cases that will happen
Immunity: In an ironic twist w.r.t to the Chevron ruling, this ruling says that judges should defer to presumed immunity, making the bar very high to bring a case. With the inability to bring much evidence, it will be even harder.
Project 2025: Most of the authors (31 iirc) are former Trump staffers, and even more are involved in the massive hiring / vetting / placing process. JD Vance was Heritage's top choice
Immunity: the courts still get a say as to what is an official act.
Project 2025 is actually a conservative agenda. With the pick of JD Vance, I wouldn't expect much of that out of his administration.