I remember some of this from researching one of my novels, linked to the Saint Petersburg moves of the then young Putin.Bank Rossiya now has UK sanctions. It was one of the hundreds of enterprises that the Communist Party of the Soviet Union (CPSU) financiers used to funnel the party gold away during the great sell-off of the Russian state. Dmitri Lebedev is chairman of the Board of the bank and a good buddy of Putin.
It is no secret that Sergei Pugachev, The 'Frenchman' who lived in Chelsea and is often referred to as Putin's Banker knows how to move money around. Just check the list of clients he advised, to get a clue about the scale of his operation.
I'm guessing that the money moves are far ahead of the available sanctions.
An example is Sberbank, the largest financial institution in Russia, Central and Eastern Europe, which Putin decided to make a government asset in 2020. He bought, for the state, 50% + 1 share of it to control the entire mechanism. Useful if push comes to shove.
I recollect that Putin offered a group of his buddies land near Krasnodar Krai, close to his own dacha. Of course, Putin's own dacha is no shack, set in Gelendzhik, Krasnodar Krai. Some of the Russian Press deny that this even exists, citing a US-based propaganda smear.
But looking at drone coverage, the main residence is more than 190,000 square feet, and it sits on some 27 square miles of land—larger than the island of Manhattan. The associated compound hosts a variety of other amenities: an arboretum with rare trees plus a greenhouse, said to be tended by some 40 gardeners; twin helicopter pads; a subterranean ice hockey rink; extensive vineyards that produce an exclusive wine served at Kremlin events; a 27,000-square-foot tea house for guests; and an outdoor amphitheater for concerts.
A tunnel that accesses the beach doubles as a bunker. It also features a special chamber cut into the cliffside that serves as a “tasting room” with a view of the sea.