I have recently begun using a gravity filter while backpacking, and it has been awesome not having to stay next to the water to hand pump it. I just fill up the bag with water and let it do the rest.
Unfortunately hiking in the desert or other places without a lot of trees to hang the gravity filter from you may have to hold it yourself which would not be fun. Instead I repurpose my camera tripod....
So in the image above I have the Lifestraw Flex and Gravity bag(Amazon Affiliate) hanging off my Peak Design Tripod.
