I checked with my old classmates who currently work at Microsoft and LinkedIn, and they do not require permission for accessing company resources from abroad.

I checked with my old classmates who currently work at Microsoft and LinkedIn, and they do not require permission for accessing company resources from abroad. One of them has been working from Israel and Turkey for many months in 2020. Another has been in Mexico since the pandemic began. I'm not sure what team you worked in, it's possible some teams have stricter policies. If you were doing business with Microsoft, the export control language is boilerplate contract language.