Hmm. Counterpoint. First, I don't doubt that making friends online is now much, much more common. But I'm surprised at the "weird and strange".
I made some friends online as early as the 90s, in IRC for example. Some of them are such good friends, we still talk to each other every day. But I personally never remember anyone, neither family nor any of the friends that I did not meet online, giving the impression that they find this "strange" or "weird". And the majority of my friends I did not meet online. Few of them are much into computers, or active online, so I don't think there's some kind of bias.
Even when we directly talk about it, e.g. "How did you meet X?" - "Met him online", I don't recall any surprise or judgement. Come to think of it, it's not really very different from "met in a classic car club".
Having met my fiancée online, for contrast, is a bit different. Probably because it does not leave much room for a meet-cute story, and is a rather intentional thing (two people seeking a relationship) instead of a beautiful coincidence. I don't think people care very much about the "origin story" for friends on the other hand, unless it stands out on its own.
I grew up in Germany, if that matters for context.