Russia is currently moving to cut it's remaining gas supply through Ukraine: https://twitter.com/GazpromEN/status/1575021274878791680
That supply, of note, has been running this whole time through the war[1] - but suddenly there is a reason to start breaking contracts right as a bunch of pipelines explode?
[1] https://www.reuters.com/business/energy/russias-gazprom-keep...
EDIT: Although on closer review, this might be coincidental since it's "just" arguments over payment. Conversely, the timing is a heck of a thing and Russia has escalated payment disputes into "and so we're cutting gas" previously.
those countries didnt want ns2 because it cut out their middle man charges. most likely culprit is any of those countries (cough poland cough)