Europe is planning to sharply reduce their oil & gas imports so this can't continue to be used as a lever against them. Every EV, every electrified house, etc. lowers demand for Russian petroleum. Similarly, they have a lot of other exports and as each of those is replaced by purchases elsewhere they'll have to work harder to re-enter the markets after hostilities end. There are also some big challenges for certain sectors: for example, after watching the current massive under-performance, how many places are going to be jumping at a chance to buy their weapons systems?
Also, remember that while China and India can choose to continue receiving exports they didn't pay as much as Europe did _before_ the war. If Russia has reduced itself to one or two potential buyers, those buyers have the power to dictate pricing well under market and the financing options are going to be very much not in Russia's long-term interests. China has a strategy they've used on smaller countries where they offer aggressive loans for projects and then take control of infrastructure / resources if the borrower defaults, and I'd be exceedingly unsurprised if some Chinese companies end up doing something similar here.
Also, remember that while China and India can choose to continue receiving exports they didn't pay as much as Europe did _before_ the war. If Russia has reduced itself to one or two potential buyers, those buyers have the power to dictate pricing well under market and the financing options are going to be very much not in Russia's long-term interests. China has a strategy they've used on smaller countries where they offer aggressive loans for projects and then take control of infrastructure / resources if the borrower defaults, and I'd be exceedingly unsurprised if some Chinese companies end up doing something similar here.