Good news its not a bug. Just to add in “why” i did that was my minimal understanding of this type of workflow. Cutting up that face to do further moves. So i DID just draw a rectangle (easy enough) and extrude and use booleans.

Not overly sure though. Like in sketchup where just drawing a line creates a “new shape” and acts as if its split. This always seemed a bit odd to me to be “automatic”. Like “what if i dont want it to automatically do that on “this” case. So i always felt like it should have some type of “choice” as part of the operation.

I am sure you have thought more about this. I’ll watch for your solution or decision…

Thanks