I have closely monitored my most recent releases and a few hand selected older ones. I made a spreadsheet that calculates the points as the old system would give. With this, I can basically “predict” the point according to the old formula, and these predictions have been 100% accurate.
So I am very confident the old milestones are still applied - at least for me. I don’t have crazy complex designs.
In the last ~week, I have noticed the Creator Center sometimes being very slow in updating, some days take 1-2 days longer until the data is complete. Even for these days, I have received my points correct and in time.