Argantonio Not true.
WEBNOVEL_OFFICIAL In the PFF, we will release one or more premium chapters from the premium titles based on a schedule
However, due to the phenomenon brought up by gunsxxroses, if you had previously bought the PFF chapters with SS, it may take a while for the free releases to catch up to you (this is however not new to the Qidian system, it's what naturally happened with locked chapters, just now there's no ad unlock option, it's more expensive, and less releases).
For instance, I bought a couple of premium RtW chapters because there was a cliff I had to overcome. After that, I stopped buying them. However, for the next 2 days, I did not see any free chapters (since I was ahead), until today, when Chapter 695 was released for free.