Russia needs its energy sources for its own war, too. Energy getting more expensive globally, while UA reducing the supply by targeting RU production, is a double edged sword. RU is now putting bans on export of some fuels, etc. Whether EU turning into a defense alliance with sole focus on RU, while taking in all lessons from UA war (without having to deal with US pressure to buy its expensive state of the art military HW which may not be all that effective in the potential drone war) is great for russia is also questionable.