Earlier quoted context omitted.
Right, the author just forgot about every game console existing.
You can write a game and all at once target Xbox, Playstation, Switch, PC, MacOS, and Linux. You can do physical releases. You can upload your game anywhere, even provide it for distribution on your own website. Everyone has choice in the equation. App stores are vampiric parasites and need to be dismantled. Either that, or these companies need their phone monopolies taken away.
You can’t distribute a Switch, PS4, or Xbox One game without giving the respective companies a cut of your sale.
Windows and Mac are the only exceptions, but you won’t get far without publishing to a digital store unless you can afford to drum up a whole lot of name recognition all on your own (also costs money unless you hit the lottery like Mojang did).