War is something entirely different. The belligerents are not trying to disable agricultural systems or power grids; an actual war is a horse of a different color, and would likely be regarded as a proper escalation in the physical realm.
Probably the best example, is the current conflict with Russia and Ukraine. It's a global cyberwar, with real (life and death) consequences.
https://blogs.microsoft.com/on-the-issues/2022/04/27/hybrid-...
https://blogs.microsoft.com/on-the-issues/2022/06/22/defendi...
It's not unrestricted cyberwar, but I also don't think we have a complete picture of the scale of the cyber conflict, nor do we have a complete picture of the attacks and defences being mounted.
There have been any number of attacks on physical infra. and civil institutions that fit that description. Sandworm (a group in the Russian military) alone has successfully brought down power grids multiple times.
Uh, no. There have been a massive number of attacks attempting to take down the power grid. It's just that the protections in place are currently working most of the time.
Unfortunately, the official stats tends to combine both physical and cyber attacks, so there's no clear sense of which is dominant... But, frankly, there isn't a need to separate them. The attacks are happening.
[0] https://www.politico.com/news/2023/09/10/power-grid-attacks-...