Update:
Thank you
@leo06 @kommando @Tweak-NL for your suggestions, but I couldn't get the M700S to recognize my OBD2 dongle despite their suggestions.
I bought on Amazon the OBD2 dongle suggested by
@Gscipione, it's arrived yesterday afternoon. As soon as it was inserted into the appropriate space, the M700S immediately recognized it, so also obviously the Torque app.
I was a bit disappointed, because I was hoping that the "car info" app, that is the app that appears when you install and set the right canbus, would show me additional/complementary info but it is not so. But it does nothing, so much it cost little (10.75 €), although nowadays even that sum is relevant

. Anyway thanks
@Gscipione.
@mastrv Your advice not to buy a new OBD2 was not heard because I was hoping to have more info from the "car info" app, thanks anyway