The way things are trending, it's going to be FAAG soon, which is not so good. I guess, technically, it's not F anymore, so it's MAAG, which is almost as perilous. But if we're truly being technical, it's not G, it's a, in which case it's MAAA, in which case we might as well go with GOAT.
At the time MS was old hat. They only grew because Office 365 extended their natural monopoly in enterprise. Definitely a good stock pick in hindsight, but not the new type of ‘new’ platform growth that was going on at FAANG at the time.
Tesla isn't a mass-market software/online-services business. They manufacture, which means a lot of capital going into factories and a lot higher of material-input costs, and they're kind of a high end brand.
This gives their business different performance characteristics from Facebook (mass market social-media and ads), Amazon (mass market sales and logistics), Apple (which is at least slightly luxury, but contracts out its manufacturing, and does mass market hardware — look at that iPhone sell), Netflix (mass market entertainment), and Google (mass market search, mail, advertising).
Amazon and apple probably both have more capital invested in factories, warehouses, etc than Tesla does. Apple is also kinda a high end brand. They seem a lot more similar than different.