There’s a time and place for 4k. It is not all the time. But some things are treats with high resolution and pixels-per-fov of your vision. Also oled looks so, so good.

That being said, 1080p for older stuff looks perfectly fine, and I’d argue audio quality, audio stereo image, and accurate frequency spectrum resolution is game changing, and arguably more important.

RE: gog for movies: that is a fascinating idea. What would that look like, to you? I’m very curious.