Those are remakes and not remasters. Different beast.
The trouble with remasters is they're usually farmed out to third-party devs who don't always give it the same attention to detail as the original developers. A prime example would be Dark Souls Remastered, which actually makes some of the graphics worse compared to the original PC version.
The line between remaster and remake is a blurry one.
Nier Replicant ver.1.22... isn't officially called either a remake or a remaster, and a convincing case could be made for either. Yet it changes more than Demon's Souls PS5 does.
The trouble with remasters is they're usually farmed out to third-party devs who don't always give it the same attention to detail as the original developers. A prime example would be Dark Souls Remastered, which actually makes some of the graphics worse compared to the original PC version.