In Canada you never have to leave to renew or change status; it's just sometimes faster to do so. It's always the applicant's choice. I went through the whole work permit to PR to citizenship pipeline without ever having to leave the country.
I'm not sure if its the same in Canada but when I went through the process for Australia it depended on where you started the process. I started the process while outside the country so to activate my visa I had to leave and come back but if I had filed while in the country I could have stayed.
I do remember Canada telling my partner she wouldn't be guaranteed reentry while they were processing her PR visa until it was finalised if we left the country though so we just ended up doing the Australian half first and I never went back.
I had a study permit at first. I renewed my permit, got a work permit, renewed my foreign passport and extended my work permit, got PR and got citizenship, getting visas to match my work and study permits, over a period of 10 years, without ever having to leave Canada. So my experience is that in Canada you never have to leave but in the US you do.
My classmates who had gone to the US for PhD programs, even those who were fortunate enough to get multiple entry visas, had visas that allowed re-entry for only the first two years of the PhD program. After that, if they wanted to leave the US, say for a conference or to visit family, they would have had to apply for a visa from abroad and hope to be granted one. In Canada, I could apply for the visa and get it while in Canada. Even comparing like with like, the American system seems bizarre to me, looking at it from a Canadian lens.
I don't think the practice of the change is significant. Reddit has numerous stories of people who are still receiving it, so whatever that release says, things haven't changed. People seem to be receiving AoS based Green Cards the same way I did under the Biden Administration. It does seem to be a bit more uncertain which is always troubling.
Really? My spouse and I lived in Canada on work permits and were not required to leave in order to achieve PR status; nor to achieve citizenship status.
Prior to Covid, my wife had
to exit the country to get photos taken as part of the permanent resident process. We took a trip to Montana for
that purpose.
This seems to have changed in the past 3-4 years, but as the GP said, the original process did involve leaving.