You either signed up for a cheaper plan, or changed your settings on the website.
How do you know it’s your screen and not someone at the school now?
If the watch is covered up enough that the ambient sensor doesn’t register the daylight, how much daylight are you getting?
I got it today wearing the sport loop, so it’s just random I think.
If you can’t see the difference in your TV, that’s the way to go.
If you can’t tell the difference due to the TV, it doesn’t matter. If you can tell the difference, set it to what you prefer.
Personally, I have:
4K SDR (60Hz) — not the 59.94Hz version
Match frame rate in
Match dynamic range on