Thanks @pk
(c) Yes, I had entered US after receiving green card, and returned back in Canada in 1 week. I applied for my SSN in US but have it mailed to me and received it in Canada.
After receiving SSN, I got a job with US company but working remotely from Canada. So my employer deducts Federal deductions (Tax +FICA). However state tax is not deducted as I am working remotely from Canada.
I will not be physically staying in US for the whole of 2022, except few days (at the most 15 days during 2022).
