Earlier quoted context omitted.
The answer to that post is mine, and i confirm that there’s some delay on start but on a moto g 2014 that i have it is ~3 seconds which is not much. By comparison, Outlook takes more than 10 seconds to start on my iphone 5s..
That’s pretty crazy re outlook. Takes about half a second on my 11. Clearly mine is newer, but over an order of magnitude is a lot.
That is why I always test my apps on older hardware.. That, and because i only have old devices.. :)