Pretty sure sun isn’t good for the skin
Yes, it is. I can attest from personal experience with a skin condition and here the first two search results.
https://www.health.harvard.edu/diseases-and-conditions/benefits-of-moderate-sun-exposure
https://www.medicalnewstoday.com/articles/benefits-of-sunlight
sun exposure without adequate protection just increases cancer risk
That’s too much sun.
Yes.