Motorola was already in my top position in the list of possible upgrades for my old (ASUS) phone, for providing at moderate prices USB 3 connectivity and DisplayPort 1.4 that allows the connection of an external monitor, for a desktop mode.
With this announcement, Motorola has consolidated its top position, making it unlikely for me to choose something else.
What do you mean desktop mode? I though only Samsung Android phones had that, called Samsung DeX.
Bear in mind it will solely be future devices which are supported. They're being developed and aren't launched yet.