I'm fine using my mobile browser for things. What I'm not fine on is using the, um, internet intent thing that comes up when you click on a link in slack or email or something and isn't actually you're browser and if you switch applications it might go away forever?
You need to click the 3 dot menu and select "open in <browser of choice>", then you can switch apps normally as you'd expect and it'll be a tab in your browser like usual.