Friendship

Has the definition of friendship changed over the past 20 or so years?

Social media tells me I have many friends, but by more extroverted standards, I have approximately zero.

I don't make time to do things with people outside of family time and work. But I do keep in contact with many people and interact via social media.

Is "friend" a useful label? What name should I give to the people I like and love, but with whom I don't necesarily physcially interact?