I don't see any reason to think that Putin wants to do more than control his near abroad. He doesn't have an expansionist ideology. He likes being rich and controlling his periphery and sticking a thumb in the eye of the West, but if he e.g. invaded and conquered Paris, where would he exile his oligarchs when he needs them to take a time out for a while? He needs the West as a pressure valve. As long as he can still have you murdered at your hotel in DC (Mikhail Lesin), he can keep you in line without needing to have ships in the Potomac.

Ah yes, the dreaded invasion of Western Europe by Russia, with their 90% outdated tanks and planes that could be held back by a single major European army. A terrifying prospects that haunts every european at night.