Possible solution but I believe there is a better solution

Adding square foot measurements will help posters in this forum.

Builder magazine lists the top 200 builders in the US. Link.

You can view the floorplans of any of them on their sites.

Here's a compact primary suite. Link.

I'm a bit lost /don't understand the layouts.

One thing I see loud and clear -- and you're showing this in both images: Do not go with a vanity that scoots over too close to the toilet. No one can stand squished between the vanity and the toilet to use that duplicate sink.

What solutions has your architect proposed?