I have the following mesh that has its top edges beveled already, but from a top-down view, all the angles are at 90 degrees, as it is visible from the base of the mesh. I want to make the corner that is the closest to the camera bevelled on the z-axis while keeping the bevel on the top edges, so that when you look at it from above, you perceive the corner as "rounded", as it is indicated by the drawn red lines. The base of the mesh should also become rounded. What's the easiest way to achieve this?
If you need to remove the bevels from an existing mesh, check out the Mira Tools addon. But since it's such a simple mesh it would be simpler to just start over.
Also, it looks like your bevels are a bit stretched, this happens when you use the bevel tool without applying scale frist.