Roon are working on this, they have commented on the topic you’ve linked above:
Have you tried adding an album released in 1950, and one from 1960, to your library?
Also, does MacOS allow you to change the display scaling? If it does, try different % settings.
I’m not suggesting these will resolve the issue, but they have been mentioned on other topics on the issue, I can’t recall if they worked, but worth trying.