Exactly, the issue here is that online services for games are becoming a lot more common these days. Back then, it was mostly a thing for MMOs, for good reason.

If people let it be, it’s really likely more and more games will require some sort of server, even if online play isn’t necessary for one to enjoy it or if it’s a mostly single player game with a few multiplayer functionalities. For now, most examples of this kind of thing are gatchas, but if people start accepting the idea that you don’t “own” the games you buy (and believe me, some already do), I can see companies pushing that kind of thing into normal games, too. It’s already starting, aint it?

Would make them more money, too, since they can pull the plug on a game and then 10 years later resell the same thing, and people will be forced to buy it again if they want to replay it. We do see this to lesser extend already.

Anything that requires an online service. Specifically, I’m talking about games that need a server to run and permanently shut down once it’s offline – these are becoming more common even among games with single player modes.

I don’t see manga becoming harder, at all, even with all the crackdowns. Smaller files, and it’s the type of stuff you can’t reliably DRM. Denuvo is mostly a problem with companies like SEGA, honestly. Most publishers these days remove it after a while.