Earlier quoted context omitted.
The lack of apps was annoying at time, but what made me leave was probably Microsoft Edge. The rendering was clearly better than IE, but Edge would crash my phone, or become non responsive, or both so often (creators update on Lumia 640 LTE). If the browser doesn't work, and there are no apps, it doesn't make sense to have the phone.
I don't understand why Microsoft has keep IE/Edge around. It's just embarrassing. Event my technology illiterate friends and family rag on IE and everyone installs chrome these days. If they spend less time building IE and focused on other platforms they'd waste a lot less time for everyone including themselves.
Plus how would you download another windows browser - it would have to be in the app store first lol.