Many of us on platforms like this are introverts, or autistic, or have social anxiety, or for whatever reason, have trouble meeting new people or engaging with strangers. If someone wanted to engage you in conversation, what topic would you be happiest to talk about?
Oh, give it time.
I’m not sure if I should say I use linux or not:
You do use it. You just don’t think it’s the equivalent of Jesus Christ of operating systems that will absolve you of the ‘sin’ of using non-FOSS software.
the vast majority of Linux use is on server or server-adjacent things and unless you’re running a home server, there really isn’t a practical benefit to for home use.