A counterpoint is that people - especially young people - who spend enough time on the internet to be willing to develop online friendships tend to be people who lack a proper irl social life, and (from my own personal experience) it is painfully obvious when you meet someone in real life who has grown up socialising primarily with people on Twitter and in Discord servers vs people who've had a more healthy balance.

Despite my best efforts to make it work, it's quite easy for me to see the contrast between people I've met from the internet and people who originated irl. The terminally-online people tend to have much higher rates of mental illness or be uncomfortably weird to be around. On the bright side, I've found this to be less true when socialising with people who I've met through those internet friends.

Additionally, internet friendships are more viable the less interesting and wholesome your life actually is. You can't start a band together. You can't share opinions on the taste of a meal unless it's from a multinational fast food chain. You can't walk through a forest together. You can't go on a bicycle ride on the trail near your house and share an equal level of genuine appreciation for how beautiful the nature looks this time of year, with full sensory experience. (Related: https://www.youtube.com/watch?v=RH3D1cpm6do)

Sure, the internet could be a good tool to initially find people (if you're lucky enough to not experience the issues described my first two paragraphs), but for me the aim should be to transition to an in-person relationship as quickly as possible. I don't want my friendships to just be text on a screen, where every thought I express to them is monitored by the digital surveillance panopticon, where they could disappear and be replaced with ChatGPT and I wouldn't know the difference, where my friendship with them is on-hold if their house loses internet for a week and their cell phone reception isn't good enough to make video calls, where I can't give them a hug or offer to tidy their house with them or make any tangible, physical positive impact on their life.