Many a people need only a basic device for Netflix, YouTube, google docs or email or search/but flights tickets. That will be amazing.
Many have job supplied laptop/desktop for great performance (made rubbish by AV scanners but that's different issue)
I was looking up an old video game homepage the other day for some visual design guidance. It was archived on the Wayback Machine, but with Flash gone, so was the site. Ruffle can't account for every edge case.
Flash was good. It was the bedrock of a massive chunk of the Old Net. The only thing awful are the people who pushed and cheered for its demise just so that Apple could justify their walled garden for the few years before webdev caught up. Burning the British Museum to run a steam engine.
I remember pulling up crash logs for people showing them that Flash was in every one of the Safari crashes the wanted me to fix. I told them it was out of my hands.
The main reason other browsers stopped supporting Flash was websites stopped being built with Flash because iOS didn't support it, and a lot of people thought that mattered even though iOS had (and still has) a small market share world-wide.
Sure, he's laying out a case for the app store they'd later introduce, but it wasn't simply CPU and battery. There's a reason I cited crash logs as the primary thing I remembered about how it affected me. It gave me an immediate reason to share with people about why I couldn't fix Safari crashes when Flash was involved, which made that aspect of my job easier to explain.
You can get PCs in formats Apple has never ventured to make and never will.
And let's not forget that Apple copies everyone else.
Folding phone? How long did it take until Apple "invented" the folding phone market? Oh, that's right, they don't have one (yet, but they are followers after all).
VR Goggles? Also late to that race, and they did a stupid thing with it.
Even the iPhone was really, really late to the game (and no, I don't care about their ~30% worldwide mobile market share).
Apple fanboys love to think that Apple invented all the things and everyone else copied them, but those are fanboy thoughts.
Sorry, Apple simply is not the technology leader you think they are.