Different fullscreen mode for different monitor resolutions

I want my game to be in letterscale mode fullscreen for smaller screens but in centered fullsceen mode for big screens.

So I made it like this (1):

But app always opens in mode selected here (2)

It looks that Configuration settings override code logic for browser object.

Is there any possibility to do it like I want it to be (different fullscreen mode for different monitor resolutions)?

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Despite fact that it's either a bug or there should be no options in Browser > Request fullscreen

as they do no effect.

Is there no solution for this issue? Should I report this as a bug?

Did you try assigning the fullscreen requesting actions to an user input event? For ex. on "F" key pressed. As far as I know you have to rely on user inputs for requesting full screen (except in NW.js). This is a browser limitation.

Unfortunately that doesn't change anything. Issue still exists.