I understood that. I don’t use radio much, so I couldn’t say if it’s different for me. But this page is the best official summary I know regarding what it chooses automatically, and it does say this:
For tracks and albums in your library, these streaming preferences will not be considered – you’ll simply get the Primary Version from your library.
This reads as if it might be expected to prioritize those. Maybe I misunderstand what is trying to say
There are lots of complaints about radio for falling into a repeat loop of always the same things over time, at least for some people. But when I do use it, I usually find it spot-on as well, and the one time I tried it over ten hours or so, it kept up the quality. That was recently, maybe things are improving behind the scenes
I would prefer that if roon radio is going to play a track it should check to see if it is already in my library and play that version first. I would much rather “like” the version in my library than Qobuz.