[tredre3]

I disagree with your blanket statement. The vast majority of (commercial) PC games were never that small, even in the 3.5" heydays. Most games required 2-10 disks.

[pjmlp]

When PC really took off as gamming platform against Amiga and Atari ST, shipping games in CD-ROM was already a thing.

Amiga had plenty of single disk games.

[dmitrygr]

PC? what pc?

Every single NES game or CGB game would fit on a floppy. More or less all GBC and SNES games could compress down to a floppy

[pjmlp]

At least in many European countries, game consoles were never that big during the 1980-90's, until PlayStation really took off.

However, and to go with your remark,

ZX Spectrum, C64, CPC, Archimedes, Amiga, Atari, plenty of games that would fit into a single floppy.