Shade is good - been in the south for 8ish years for work - It gets toasty down here.

A combination of artificial shade and greenery can have multiple benifits. (where applicable obviously - not all regions can support it nor should they try)

Shade can be functional too. There’s been some interesting research into panels/pigments that radiate infared light at the wavelength that can escape our atmosphere producing a cooler than ambient surface that could have a variety of uses. A ton of recent advances in solar technology as well.