So when you want to use email on your phone you first open a web browser, then navigate and sign in to your email service? I don't know anyone who does that, do you get some benefits from doing it that way (if i understood correctly)?
I will say, i use Firefox for YouTube rather than the native app, but only because Firefox extensions _infinitely_ improve the browsing and viewing experience (ad blocker, distraction blockers, subscription grouping and sorting, automatic resolution selection).
I do this on a couple of devices where I'm not logged into accounts at the device level, so app stores are not always available. I end up using the browser for most things, and it works great. The browser saves my sign-ins, and I bookmark sites like apps to make them easy to access. Works really well, dodges all the weird app stuff (app store exclusivity, permissions, app upgrades, etc.). This is all Android though, so I can add all my browser add-ons that make the web usable, which helps the overall experience tremendously.
I will say, i use Firefox for YouTube rather than the native app, but only because Firefox extensions _infinitely_ improve the browsing and viewing experience (ad blocker, distraction blockers, subscription grouping and sorting, automatic resolution selection).