And it leads to https://help.apple.com/macos/big-sur/macbook-air/
I’ve experienced something like that with every MacBook or iPad I’ve purchased in the last few years.
Okay, I would be totally fine with this, I’m just a little amazed that my 2015 5k iMac is apparently now both portable and brand new.
Big Sur was indeed a tremendous update. 
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I just found the MacBook Air tour on my M1 Mini
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Same thing yesterday as well
On a somewhat similar note, I upgraded my iMac to Big Sur this morning and I just got this notification:
To be fair, I did upgrade directly from Mojave, which is probably what’s triggering this.
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