I acknowledge that it isn't *in theory* and some, like you, will say 'both.'It's not either or though.
But right now, in reality, only one of them is practically "on the table" as a tool (at least among leaders that care about the pandemic and science).
But that shouldn't be. If the political calculus of leaders who should be following the science is not to get constituents angry, then they should chose Strategy B, a vaccination mandate. If everyone was vaccinated and boosted then you could avoid lockdowns and stop stressing about the 20% who won't wear masks or wear them properly, because, everyone's vaccinated.