Well, new GTA is 30 fps only. Some (most?) games have performance vs quality toggle. Quality mode being 30 fps, and performance mode looks too ugly.
Sure "only 30 fps" is big news, but pretty sure "quality mode target 30 fps" is still norm.
In Xbox, many games launched at 30 fps only, then gained 60 fps mode.
Until I see majority target at least 60 fps as minimal mode, my point IMO stands.
Depends on the game. Many shooters have always targeted 60 fps (COD / BF iirc). A single player game may well target 4k30hz unless the user selects 'performance mode'.
In the PC version Resident Evil 5, hit reg with a particular boss is tied to fps, so I had to lock it to 30. Going from 165hz to 30hz was noticeable, everything above 60 just felt a bit smoother to me but 30-60 was night and day. I rarely notice it when playing on console.
Ironically the only game where I've ever felt I had to enable performance mode was Life is Strange. Not the sort of game you'd think would suffer from 30hz!