Yeah, I mean Google Sheets is created by Google, who can afford to throw craptons of money and warm bodies at the specific problem of making sure their browser

Yeah, I mean Google Sheets is created by Google, who can afford to throw craptons of money and warm bodies at the specific problem of making sure their browser is an inescapable part of the life of every modern computer user, so they can sell ads. You and I don't have the same constraints and resources as Google.