When I'm at someone's house and the YouTube video kicks into 4k 60fps its noticeable.

Its almost too distracting when you're not used to it. When its gone I miss it for a day or two but ultimately wasn't the reason I enjoyed it.

I'll watch YouTube on my phone at 480p because I pretty much grew up on metered internet and it just feels wasteful. But I'm the type of guy to play at 1080p mid settings (uncapped distance and frames if possible tho) to give my PC a easy time. Even if have the media installed locally I'm going 720p tops because now storage is more important.

The only time I'll fully let myself enjoy high res high quality media is if its a physical form like a blue ray. Other than that in the back of my mind I'm always thinking about how ray tracing and crazy high rez is kind of a gimmick, and how I would rather have more frames or conserve my hardware.