hello, very sorry if this is not permitted here, however I did not find another place to ask.
so, I have a 'friend' of quite some time, I am their only friend or person they converse with - or was, I think, because they disappear a lot. I have never saw them in real life, however we spoke a lot using message for like, 6 years.
3 years (or so) ago, I perceived they got a bit distant with time, and today we exchange like, 2 messages per month. in this meantime they asked me in order to switch messenger apps quite a few times, i thought excessive of it but did anyway. they deleted all things and texts we had for me too, I did not like it. granted there was a big risk of leakage due to info and I made some mistakes with it, but yea.
and then they started to say stuff like "hey, you should do xyz, should care about privacy, this and that", nothing pushy, just informational, with a few articles to read. I believe what they say now and am taking own measures, however very low compared to theirs.
the point is: although I believe the privacy issues nowadays, I guess they are taking too serious of a problem. they are not 'important' person or target but their 'threat model' seems to be extreme.
to the point of ditching all tech except phone+pc, they told me they bought pixel w graphene os (had to research it), never put sim card on it, they take like days to respond and give excuses like "srry, phone was in another room inside special bag". stuff like that. they are obsessed and stopped things like gaming and youtube, which I do not know why. they say they feel exposed all the time even with internet turned off.
the final reason I am here is bc I am a bit worried. they tell me they do not leave house in months (bc of other things, but idk if its true), they live with their grandma and no one sees them otherwise. they always were very introverted and did not leave home, however I do not know if the reason changed and if they are ok. they say no bc they are tired but I do not know how to respond. family does not like them, never did anyway, so no one to call for checking.
question is: for ppl who have gone through privacy obsession like them, changed everything and did a lot of things to protect themselves: do you think their behavior is normal? should I be worried? does anyone know person who went through similar phase? is there anything I can do?
I suggest psychologist bc they have no one to talk, but they can not pay for it. they also say that psychologists write stuff down and inside pcs, and that it gets saved on cloud with their real name on it, which they do not want. even though they say they want to go if had money.
I just wanted to help. sorry for the wall of text and terrible writing skill, I am just lost. someone pls tell me their experience or thoughts or even if I messed up by asking this. its that its been 3 and a half years already and no improvement. I wanted to game with them but no response anymore.