You don't just have friends and non-friends. It's a spectrum. By raising the bar for reaching you some people no longer cared to be your acquaintances, and others remained connected but talked to you less frequently. And so you lose some of the contact that you had with other people because of your own actions, no one else's.
At the "far end of friendship spectrum", that is the closest form of friendship, there's no one there. Given enough obstacles that you yourself put up eventually you'll lose absolutely everyone.
This is completely ass-backwards thinking. We don't have apps growing out of us and we are not doing things to ourselves "because of our own actions".
Leaving a bad app is a bit like leaving a country where a dangerous tyrannical dictator has set up shop. You didn't decide to rape murder and pillage your neighbors, the corrupt leader did. Getting the hell out of dodge is an extremely reasonable thing to do, and you are not cutting yourself off from your acquaintances, the evil dictator is.
Besides, app messaging is completely backwards anyways, we invented protocols because they are the best way to reliably communicate.
As an adult, how do you make the strong bonds that lead to people going out of their way to remember to invite you to things? Maybe you meet someone and click immediately, more likely it's someone you know from work, and commonly it's acquaintances from seemingly superficial activities that become close friends after you're mingled and mixed with enough folks to find your tribe.
"everyone complains about group chats being noisy" but there's a good reason they're still in there (obviously a big part of it is fomo but it's not obvious to me that everyone's lives would be better rejecting them. Human social dynamics are messy and not efficient).
But like, the world is going in a direction sadly where meaningful human friendships are disappearing, being replaced with endless acquittances who do not care about you, and you do not care about them either. Which I find really sad.
Most of organising problems are btw due to the lack of effort, not a true lack of time. "I am busy" is usually just a convenient excuse to why you don't want to do something together, not that you don't actually have time. (You do have time binging netflix, do ya?)
Yeah, the internet has been a blessing in the past in terms of socialisation, but nowadays, it has made it even worse than before. IRL activities are dying because everyone is on social media - but not spending any time with each other, just scrolling alone. I find it very sad.
With that being said, if you want to chat, I'd be happy to :)