Russia could blow up nuclear plant
newsweek.com
newsweek.com
All major newspapers papers reported on the risk of a nuclear explosion, including, for example, The Guardian: https://amp.theguardian.com/world/2023/jun/30/russia-has-app...
So I would say saying this is disinformation, is disinformation.
It's a common disinformation technique to list two possibilities and imply that they're both just as likely.
But it's much more likely that Russia would blow up the nuclear plant than it's "just disinformation". Implying otherwise is just parroting Kreml propaganda.