Well first off I think we were speaking colloquially. But secondly, I think unless certain powers cross some threshold where they’re undeniably engaging “total war”, they’ll use wishy-washy terms like “special military operation” (Russia) or “armed conflict”. That’s also not to mention proxy wars (Syria) or even non-violent acts of aggression against sovereignty (Hong Kong).
In other words, “total war” is a necessary ingredient for a “world war” these days or you’ll have all of these countries claiming they’re not actually at war.