Thanks @Vanessa A !
1.> But if I choose that first option (330 days or more of stay outside the US), I've to then enter the details of my insurance coverage and the months I had been out of the US in subsequent parts of the insurance interview.
2> On the other hand, if I choose "we had coverage all year", the insurance coverage interview concludes right away (that @MarilynG also mentioned).
I'm planning to go ahead with 1> (though the 330 days of stay outside the US would be from April 2021 to March 2022, not entirely in the year 2021. Hope that's fine?)
