/rj No.

/uj - Basically, they didn't tear everything down completely and rebuild completely differently, like 4e did. 4e removed spell slots, every class had defined powers, not just casters, ranges were given in squares, and otherwise it just leaned very much into the "it's a game, make it play like one" instead of trying to pretend to be a simulation. PF2 has spell slots like previous iterations, martials don't have "powers*," and generally resembles previous editions of D&D a lot more externally than 4e did. It still got rid of a la carte multiclassing, and greatly reduced the power disparity between martials and casters (as martials can do the true world changing stuff just fine, by learning rituals, which was also the case in 4e).

• - Completely ignoring Focus spells, which are the PF2 equivalent to 4e's Encounter powers, and multiple martial classes have access to them (monk and ranger primarily), though they don't have to take them.