It’s possible if people are using company-provided devices at home in lieu of their own, and the company is providing Windows devices while theirs were Apple. I don’t know the likelihood of this explanation, though.
Now, I can't see people suddenly not using their iPhone because of the pandemic (quite the contrary actually) - perhaps this signifies a slowdown in iPhone sales?
It’s possible if people are using company-provided devices at home in lieu of their own, and the company is providing Windows devices while theirs were Apple. I don’t know the likelihood of this explanation, though.
I would personally think this is unlikely. Looking at https://gs.statcounter.com/browser-version-market-share we can see that Safari on iPhone probably caused the overall drop.
Now, I can't see people suddenly not using their iPhone because of the pandemic (quite the contrary actually) - perhaps this signifies a slowdown in iPhone sales?