If we talk about attacks on Nord Stream 2, as well as on the Crimean Bridge, then it is a signal that the West has obviously crossed a very dangerous line.
According to the doctrines of the same NATO countries, “damaging critical infrastructure facilities is regarded as an act of armed attack, which implies a conventional response” with the use of armed forces. The conclusion is that this was a step towards further escalation.
Conspiracy theory and unsubstantiated claim from pro-Kremlin outlets accusing the West of being responsible for the explosions of the Nord Stream 1 and Nord Stream 2 gas pipelines and the Crimean bridge. There is no evidence that any Western country is linked to the explosions and the leaks.
On 26 September 2022, the NS1 and the NS2 pipelines both ruptured. Denmark and Sweden view the Nord Stream pipeline leaks as 'deliberate actions'. Sweden, Germany and Denmark opened an investigation into the incident. This is the first step in determining what caused the leaks. Anything before that would be mere speculation and conspiracy theory.