It took a modder just hours to add 4K support to the Metal Gear Solid collection

pcgamer.com:

In what may be a land speed record for highlighting the inadequacy of a PC port, modder Serge has published a small tool for the new Metal Gear Solid: Master Collection ports that enables them to run at 4K or other resolutions. Despite Konami's confusing claims over the last few months, players learned today that the emulated HD remasters of Metal Gear Solid 2 and 3 both render at 720p on PC, which makes for a particularly blurry picture on higher resolution 1440p or 4K monitors. This mod, which was released approximately 10 hours after the games unlocked on Steam, fixes that. It is 64.5 kilobytes.

I tested the MGSResolutionPatch in the opening minutes of Metal Gear Solid 3, setting the game to render at 3840x2160 (4K). The difference in image quality is stark. 

It's possible that this resolution change breaks some of the game's visual effects, which were designed very specifically around the PlayStation 2's hardware. From the opening minutes, however, it looks flawless.

And as eagle-eyed players of the game have pointed out (on Resetera, for example), some of those effects were already changed in the porting process to the PlayStation 3 in the 2011 HD Collection, which this release is based on. Sticking to this resolution for 3D games in 2023 remains a baffling choice, especially because there are some parts of the games Konami has gone in to modify, to correct a few glitches that exist in the HD Collection. Surfacing a resolution option for players would've gone an incredibly long way in soothing anger at this remaster.

The MGSResolutionPath apparently causes some UI issues in Metal Gear Solid 2 (or rather, changing the resolution in general causes those issues)—but I have a suspicion modders will be quick to solve