You likely have very different standards as to what you perceive as vocal when it comes to LGBT people vs straight/cis ones. If a man and a woman kiss in public, you might not even notice. But if it’s two men, they’re “provocative”.
About 5% of people in the West identify as LGBT. Considering that the real number must be larger (as people are often afraid of disclosing that their sexuality is anything but straight), it’s very likely that someone in your close circle is LGBT+.