Did you miss the multiple posts of mine with direct quoting of the report.The UK hasn't said no.
They are now at the same stage that the US is at, where they have said they need additional details etc.
We have no idea how far along other authorities are.
Have you read the 8 page doc that @BRiT posted?
Edit: That sounds harsher than I meant. Just meant that it basically said the threshold to go into next stage is pretty low. It's a lot higher for them to say no.
https://www.washingtonpost.com/video-games/2022/08/23/saudi-arabia-microsoft-activision-acquisition/
we know how far some are.