Speak for yourself. I am very experienced. I have worked at many companies, some of which I left abruptly, and others where my close friends were fired/laid off.
But guess what? None of that matters. Just because a friendship starts at a workplace doesn't mean it ends when the employment ends. Some of my best, life-long friends are people I met at work. My current SO, who I will marry, is someone I met at at a past employer. My wedding party is going to be half-filled with people who I met at work, even though I no longer work with them. I currently mentor (and am mentored by) people from past jobs, one of which was actually fired.
This is also a self-fulfilling prophecy that I see in these conversations. People begrudgingly make nice with people at work, and restrict those relationships to only happen at work... and then are surprised when those relationships end when employment ends. If you only interact with your "friends" at your employer, then no shit those interactions will stop when your employment ends. But they don't have to, and for many people, they don't.
It's not any different than any other part of life. I'm no longer in college, but I'm still close friends with people I met in college, and I don't regret at all the fun activities I did during college. I no longer go to my old gym (I switched to a new gym), but I still keep in touch with someone I met at the old gym and I still benefit from the exercises I did there. I no longer live in my old apartment, but I still keep in touch with my friend who lived across the hall from me. Why should my workplace be any different?
WFH has changed work from a social experience into something boring. I get it, work is work, and maybe treating it as a more significant part of life isn't a shrewd move, but I am definitely missing out something in this current state.
(That being said, I do understand that I may change my mind in 10 years, assuming I have a family. But I can only talk about how this seems today.)
You sound SO different from me. I really struggle to form relationships so easily, yet it sounds like you making lasting relationships wherever you go.
I find that kind of fascinating. As someone who just went back into the office with the whole intent on being more social, I still find that my interactions with coworkers are at "arms length" and are very sterile. Hard to imagine a relationship with them outside of work. That line is still very strong.
Kudos to you. But I would ask, is this an intrinsic skill or did you learn this over time?
It works even better if you can manage to remember those things people get excited about. Even if you don't remember anything else about the person, it gives you something to revisit in future conversations.
I've heard from people who are good at this that it comes from a genuine interest in other people. They're able to work through the small talk phase because they're driven by an intrinsic desire to learn more about the person. I definitely do not have that trait.
One thing I would say though: if you believe that this is an intrinsic trait that others have, rather than something that can be learned, then this belief may hold you back more than you may think.
Your point about not over-investing into a company that doesn't care about you is valid, but not relevant.
I think how much you invest into this faceless entity is independent from whether you WFH or the office, no?