It's basically the normal level of "don't look at the sun idiot" except on a day that everyone will be intentionally staring at the sun

There is a bit of added danger in that also everything will be dimmer making your eyes more dilated and allowing more light in. Especially if you are looking through dark eclipse glasses then immediately look at the sun

But yeah glancing at the sun once or twice is fine

Intentionally looking up at it like this though not so much lmao