The Discover content (which disappears after 24 hours, a much longer window than for other content) often features harsh language, violence, advertisements, or videos with, for instance, a character flipping viewers "the bird," and there is no option to opt out.
With a little imagination and confidence, you will be able to meet lots of people who share the same turn-ons as you! They can be a little like the spin of a roulette wheel as to whether you find someone in there that you like.