I love this layout, what is it?

Thanks, that’s what caught my eye originally! It’s actually a Keychron Q65

This looks grand, great choice for macro key symbols!

There isn't a UK layout of the Keychron Q65 is there?

Thanks! Unfortunately, I don’t think there is

edit: grammar lol

A couple of times I have seen this layout [& another similar layout] referred to as a "65+". However, I believe that the Keychron Q65 is the only one that is currently being produced/sold, which is unfortunate because this layout is awesome!

Yeah, the group buy for this board on Keychron's website started a couple of months ago and just recently started shipping. So far this layout has been particularly nice as a daily driver. Hopefully there will be more similar boards produced.

which BoW set is this?

It’s a Keychron double shot PBT BoW set