Do you apply sunscreen even when you go to the gym?

I started exercising recently, and suddenly I became curious.

I thought I didn't need to apply it since the gym is indoors, but...
It takes about 10 to 15 minutes to walk from my house to the gym.

I sweat a lot when I exercise, so
I'm worried that if I apply sunscreen, my pores might get clogged and I'll break out.

Do you all apply sunscreen even when going to the gym?

If you apply it, do you use regular sunscreen?
Or please recommend some products that are good to use while working out!