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Universiality, basically: almost everyone, everywhere has an email account, or can find one for free. As well as every OS and every device has a giant pile of mail clients for you to chose from.
And I mean, email is a simple tech stack and well understood and reliable: I host an internal mail server for notifications and updates and shit, and it’s rapid, fast, and works perfectly.
It’s only when you suddenly need to email someone OTHER than your local shit that it turns to complete shit.
It’s a slightly more performant GPU with a worse CPU than a Z1. (Zen3 vs Zen4, 680M vs 740M)
But we’re talking very slightly better GPU performance, so calling it essentially equivalent for gaming is probably perfectly reasonable.
Except, of course, you can find the Z1 Ally for $250 at BestBuy damn near any day of the week, soooooo uh, yeah that pricing huh.