No!
Every developer has their own methods and plans when developing and testing their projects!
And these methods can vary greatly depending on whether you're working in a team or on your own! Or the delivery time of each update!
For example, I always test all new updates on the highest settings! If you test all the graphics options, you'll waste a lot of time! And remember: time is extremely important for any developer!
And for developers, the priority is to create a game where bugs don't get in the way of your experience and, of course, to be punctual with updates!