But you can still create a smooth rounded wall with a simple workaround: split a wall into smaller sections and shape them into a curve.
Steps to take:
Open your project in 2D view.
Create a regular straight wall (or choose an existing wall you want to curve).
Click the wall to select it, then choose Split.
Repeat Split several times so the wall becomes multiple short segments.
Drag the wall points/segments little by little to form an arc (a rounded shape).
Keep adjusting until the wall looks the way you want.
Tips for a smoother curve:
Start with a few splits, then add more if the curve still looks “angular.”
Zoom in while adjusting small segments for better control.
More segments = smoother curve.