We have escalated beyond the point we have been in for the last 80 years. Russia have lost more troops than in any war since WWII. That is a lot of dead Slavs. Their strategic nuclear defences have already been attacked [0] and NATO currently appears to be organising direct strikes on Russian territory. They've made it quite clear that they want the war to continue until something in Russia breaks. When more warnings are you expecting to see? There are a lot of warnings out there.
We could easily discover that someone tried to launch the nukes already in this conflict. It would be precedented; the situation is more tense than it ever has been before and we've had fortuitous near misses in similar situations. We're already in territory where we are rolling the dice for a catastrophe with low odds.
[0] https://www.nytimes.com/2024/05/30/world/europe/ukraine-dron...