Navigation and quick stack not centre aligning to viewport at bigger sizes

I want it to align to the viewport width. I need help again with 2 things:

  1. Why doesn’t my navigation keep the centre alignment when resized bigger than breaking point? It seems like it shifts to the left.

  2. Same is happening with my quick stack. Why doesn’t it retain the alignment of the mini nav bar above?

I tried to many different things, just can’t solve it. Pleas send help!