Per recommendation in a PM, I have reverted to Photo Mechanic Plus Version 2025.1, build 7955 (966971f), and I'll be staying with it. It's a marginal, yet significant difference for my eyes.
FWIW, the recommendation to go into the Mac Display area and adjust the font does nothing, even after setting the font to 42 points.
Anyway, thanks, and I'll look into changing my subscription to a perpetual license.