Put on a pair of the thinnest gloves you can get your hands on, like a batting or golf glove and you’ll have an idea how sun gloves feel, even though most have exposed fingertips.
If I felt compelled to wear sun gloves, I know MY hands would sweat like crazy because they do so without gloves if I do any hiking so at minimum, I’d cut out the palms.
I personally can’t stand any gloves unless it is absolutely freezing and in summer, unless I am fishing out in the open because my sun exposure is minimal because of trees.
I always have a bandanna around my neck and a hat with a brim. I apply sunscreen to sensitive areas like my neck, face, ears and arms and the back of my hands making sure to wash off my palms and I’m good to go.
Obviously, YMMV.