This is a bad chart with lots of data issues. It apparently consists of two points, 1995 and 2017. The source is some data aggregator that isn't clear, and of course the differentiation between the categories is non-existent. what is the difference between "church," "friends," or "neighbors?" What is the difference between "school" and "college."
That said obviously there are more "online" couples between 1995 where the only options were AOL or IRC chatrooms and 2017 where actual dating apps existed that were easily accessible via your phone.
My Take: I agree the internet has changed society in the past 22 years. Thanks shitty chart from reddit. I now have a greater awareness of the significance of the internet.