The NYPD are a bunch of jackbooted thugs of a white supremacist administration under the thinnest veneer of "justice". Equivocating between them and the PLA is absurd.

“As far as I was concerned,” he said, “anybody who’d stand against the cops was all right with me, and that’s why I stayed in…Every time you turn around the cops were pulling some outrage or another.”

https://www.villagepreservation.org/2022/06/13/dave-van-ronk-ally-at-the-stonewall-uprising/

Remember that picture of 50,000 uniformed fascists taking over part of the city in a show of force allegedly for a funeral because some pig got got?

That said, my understanding is that relations between the PLA soldiers and the students were positive throughout. Almost all the PLA soldiers in the square had no weapons, including no batons or riot helmets. I believe there were some riot units present but they were a small number relative to the overall PLA presence. There are stories of the PLA soldiers and students singing songs and sharing food. It's important to remember that most of the students in the square were advocating for a return to Communist economics from the Dengist market liberalization. From what I understand the CPC didn't really know what to do with them because they didn't want to start a confrontation with people demanding more communism, and that's largely why the event was almost entirely peaceful.