Go ahead and assume, whatever you want.
To tell the truth I am American, but I am currently married and living in Vietnam.
Vietnam mandated everyone wear a mask in public, for about two months. We have one international border, separating us from China. So their response was pretty serious.
The thing is, it seems to have worked. There has been apparently, no new transmissions within the country for a month. Schools have re-opened now, though all the international teachers were tested, for the re-opening.
The requirements for masks have been removed now here, though I am still wearing one, it has now been five months.
Similarly, there have also been no new infections in Taiwan in over a month, and apparently now also Thailand.
Several other countries, are (much) better than they had been.
So I am even now, being careful. I think prudent.
However, you do what you think works best for you.
:)
I read two different articles about the pandemic in Vietnam. The reasons for limiting the spread were given as quick lockdown (REAL lockdown) of infected communities, widespread testing, quarantine of people entering the country (followed my banning entry), and contact tracing. Neither piece mentioned masks.