Ah, yes. The “let’s bloat our game size to bully other games off your SSD so you’ll be reluctant to ever uninstall it, because reinstalling it would be a big pain, that way you’ll play it indefinitely and give us extra money in micro transactions” strategy.
Probably the same way modders have been doing it for decades when bringing older games up to modern standards.
Modders rarely bring crisp textures which will look good on 4K. I haven’t seen anything myself.
I don’t think I have seen anything of note from AAA developers either. I don’t play every single game that comes out though and mostly focus on things easy to get back into when work keeps me off games for several weeks.
There is a likelyhood that the games I have played weren’t made with 4k in mind even if the game can display at the resolution though.