Why is there a double click in device simulation?

Question

Microsoft Edge

Forgive me to correct my tags or the essence, if I incorrectly indicated.

So, here's the thing: when I simulate devices, whether it's a phone or a laptop, it happens that an unknown double click happens .
Attention, I click on RMB , where, as a result of which, due to a double click: the site is printed to the printer, save, as, etc., i.e. everything from the list. Such a "miracle" appeared literally from nowhere.
To be honest... it's already infuriating that I'm trying to check adaptability for different devices - and here this shnyaga clicks a second time, and tries to download the site for me :/