Is this different from my android experience where I open a link from an app and it opens my default browser, Firefox, but kind-of within the app, but allows me to instantly switch over to the Firefox app instead using a drop-down menu option?
Custom Tabs always have a title bar and a small writing "Powered by <browser>" at the end of the menu.
> Comparing this to what happens when using a normal browser, or in this case, Telegram, which uses the recommended SFSafariViewController:
> As you can see, a regular browser, or SFSafariViewController doesn’t run any JS code. SFSafariViewController is a great way for app developers to show third party web content to the user, without them leaving your app, while still preserving the privacy and comfort for the user.