Edit: it actually looks like a 5x7, in which case the best font would probably be something like the 5x7 a lot of character LCDs use: https://www.pjrc.com/mp3/lcdfont2a.jpg
Having a bitmapped screen was already a huge improvement over character based graphics so I guess that everybody that could get it did so and took the lower resolution letters in stride.
I'm trying to remember how much we squeezed out of a Dragon32 'high resolution' mode, 256x192 pixels, I think it was 64 characters by 27 lines or so at 4x7 (that's really not the nicest font). Hard to read but the increased linecount made it worth it and eventually you got used to it.
Before that it felt like looking at your code through a keyhole.
My first 'decent' screen was an Atari ST at 640x400. That was such a huge step up. And after that ever improving Tseng cards in a 286 based PC, that's when 132 colums became workable.
Funniest thing though, for a long time I thought there never would be enough characters on a screen and now my eyes have gone so far backwards that I have to use a 32" screen with huge fonts to get anything done at all. I'll probably end at a 4x7 font again but with pixels the size of lego bricks.
