Those work perfectly via a browser, on any platform where the browser can run. As long as a hypothetical open OS has a browser capable with bog standard modern capabilities, it will be fine
It required me to install the application to sign in via web browser. There was no way, the web app wouldn't bulge.
I did it, checked my $5 dollars balance and deleted the app again.
Totally disgusting behaviour.
People have genuine reasons to stay with the provider / platform and usually browser doesn't cover half of their use cases.
For example I have to use Revolut because it's one of the very few banks that allow me to use Garmin Pay and work (reluctantly) on my phone without Google rootkit. Can't use, say, Curve because their privacy policy is alarming (and I had a very very weird/disappointing interaction with their compliance team).
And you've already got a good example with Netflix.
You are technically right, we still have access to these services via a web browser today. It doesn't mean we'll have it forever.
With the advent of AI browsers and AI agents, it's not hard to think of a future where LLM chat interfaces and mobile apps are the future, and web apps start getting disregarded as legacy and eventually, discontinued.
Try ordering some food via mobile application and then again via web app. You'll instantly feel the downgrade on the web app. Bugs, glitches, slow experience.
The desktop web is already the 2nd-class citizen for modern startups.
And I guess people who downvoted my counterpoint thought that it means that all services on the planet have very well functioning browser version, judging by their comments. Some don't, some do. But no one of them "requires" excessive access a native app can provide.
Some may want to have it, for some browser version is simply not a priority. But nobody needs to have additional info for those services to function.