Vast majority of what's left is LNG, which is rather hard to shut off because it's easy to conceal it's origin, but for the same reason, it's not a source of any danger to Europe: Putin can't shut it off from his side, either - because the stream is managed by international traders so there is no way he could say "no selling it to Europeans". Goal of getting rid of Russian energy was to limit political influence/blackmail potential and LNG imports are safe from that.
Apart from LNG, there is Turkstream. It provides little and will be shut down by 2027. There is very little friction about it.