Like a lot of people over 50, I sometimes struggle to read text on a smartphone, but I find the Zwift companion app to be a lot more difficult than most - mainly because of the blocky font you have selected. I know this won’t rate very highly, but I have to say something because it annoys me every time I use the app. It’s mostly an issue trying to read the numbers, which all seem to be in bold blocky text.
Maybe even a font selection option? I’ll let the appropriate parties know of this feedback, thank you!