From what I’ve seen in this community, the daily mixes have come and gone a couple of times due to some issues. Right now I can see them for what it’s worth.
Recent activity being at the top is correct, but then there should be New Releases for You, Daily Mixes, Genres for You, and maybe more. Not sure about the specific order.
I notice that you have just 129 albums and 289 tracks in the library, maybe that’s not yet enough information for Roon to build the recommendations? Or maybe you have used Roon just for a short time? I don’t know but seems possible that it needs more time/information
This is the support channel and it will definitely take more than 4 days until the support team gets to you. This is not great but they don’t have enough resources