[manvillej]

Google: chrome is free and makes up 62.85% of browsers and android makes up 70.89% of all mobile operating system. Both drive users to google. Google ads is still one of the easiest tools for monetizing websites and advertising with a large market. Even if Newcomers bridge the massive technical gap, they won't have the same size of market so they aren't going to be as attractive unless they niche down significantly.

Apple has a strong luxury brand, higher quality, a large valuable market with a strong app community. They have a similar insulation to external players. Macbooks also tend to be popular in development communities due to its unix based os and strong support, which can be a strong alternative to a linux os for companies, but has been watered down with Windows push to support WSL2.

Postman doesn't have a moat. They don't have a strong marketplace where they can profit of exchanges. They don't have a significantly more advanced tool. it can be easily replaced by any user with an equivalent product with no real loss.