alt Hacker NewsAmazon and Steam work fine over a browser, as does signing in to Google. Why are you using Netflix on a phone?
The major problem is banking, although some banks still work with Waydroid, and a few banks have full featured websites that work. But you do have to be more selective.
Netflix has over 1 billion app installs on phones, so go ask 1 in 8 people.
Is a browser on compromised hardware supposed to be more secure than an app? Amazon, steam etc still risk exposing accounts authorized to make payments using your money. It's easy to think "I just won't use banks" and underestimate the risks of doing anything on compromised hardware, and the answer isn't to play the "what could possibly go wrong" game, it's to not use compromised hardware.