I mean, it depends? Obviously Netflix has extremely different priorities than 99.99% of the software in the world. Scale of operations is much different as well.

It’s available in most of the countries in the world, in a lot of varying devices, requiring a ton of different video processing pipelines, content delivery networks, infrastructure and etc. Even very “straightforward things” like downloading for offline viewing can be a significant effort to implement. Now think of audio sync, post processing, sub delivery, localization, partnerships and etc., you can see how you would need a ton of engineering effort to achieve it. Just the scale makes it much nuanced perspective during implementation.

You and me can dislike whatever content they’re delivering, but it’s very obvious how there are millions and millions of people who still enjoy it.