I think this basically means that PS4 hasn't hit 117.10M yet, as Sony can't update the following decimal number after the previous update - 117M
They will probably update it to 117.10M in the next quorter ending september. And maybe once more after holidays or march of next year to 117.20M
Anyway you are right, it's not doing more than that.
P.S. Also why there are some places on the web (even wikipedia) where it says 117.2 shipped as of march 2022 ? I am confused.
If you add up all shipment numbers Sony reorted over the years for each quarter you get 117.2mil. A rounding error that some sites decided to ignore despite Sony reporting 117mil.