Of course it is, if other side knows this they will train and react in a way to appease. And a KGB apparatchik should know a trick or two about psychology, manipulation etc. Especially quirks of US president,
the counterparty in global political games.
He may be internally with himself still working the same 'patriotic' game, but currently in some very f**ed up psychotic way.
But to be honest, I don't believe it - he stole half of Russia, continued and improved system of state-managed corruption and theft, russian population is a poor miserable one more than ever. He clearly doesn't care for murdering fellow close slavs, and other russians neither. But billion dollar worth pallaces and superyachts are fine for 'great leader' I presume.
Actions speak for themselves more than some shallow talks or staged trained looks.
Or maybe its just the good old 'power corrupts' theme. He certainly is just a mere shadow of his former self, at least the part public can see.