Interesting graphic; thanks for putting this together!
I expect the recent decline is (at least partially) connected to the approach of the holidays... people are off doing offline things more than usual; gifts, decorations, preparations, parties, travel...
That could indeed be the case. We'll have to see how it develops on the long run.
I'm going to guess, that week 1 and 2 of 2025 will see the numbers pop up, as people start talking about their goals and New Year's resolutions... we'll see!