One thing I've wondered lately is about the 6x6 fonts (or perhaps one particular one) that I've seen in all kinds of old (late 80s to very early 90s) games, particularly on Amiga and MS-DOS platforms. The Atari ST had a 6x6 font in ROM (see https://fontstruct.com/fontstructions/show/876150/atari_st_6 for an example) and I think I've seen text that looks just like it in games that I know where developed first for the Amiga, as well as some early VGA DOS games. Maybe there's cases where artists were drawing graphics first on an ST, weird as that seems for an Amiga production - people have to use whatever tools they have at hand, so if that's an ST with Degas, Neochrome, or whatever, so be it. I considered maybe there was a similar font included with Deluxe Paint, but I can't find any indication of that. Perhaps instead a 6x6 character cell (leaving, really, 5x5) is just so constrained that there are very few ways to draw legible characters, and that's the reason for the uncanny similarity. Or perhaps the font got ripped and converted to some other format that was then passed around.
I suppose I should start collecting examples of this font as I spot them, for comparison.