NordStream 2 was never put into service. Germany halted it due to the invasion. This was considered a very big deal.
At the time of the explosion on 26 Sep there had been no gas flowing on NordStream 1 at all. None! Flows on NS1 were shutdown by Russia on 31 Aug. This came after a series of declining flows from Russia accompanied by various efforts by Russia to get Germany to violate sanctions and persuade other countries to reduce sanctions. It culminated in complete shut off of NS1 and an offer to instead activate NS2 before the explosion (one of those pipes was suspiciously left undamaged).
Russia had been trying the blackmail that everyone feared, and Germany resisted it. I've bashed Germany a lot for it's response to the war but the fact is Germany got off Russian gas at huge costs and resisted the blackmail threat.
Folks who don't believe this can go view the data in graph form here: https://www.statista.com/statistics/1331710/nord-stream-phys...
Or Grab the raw data if you want: https://www.nord-stream.info/
Germany gas imports from Russia: https://www.statista.com/statistics/1332783/german-gas-impor...