When a line is created in the vector editor, it automatically has rounded lines. However, when a shape is created and then a part of it is erased, you can make a line with sharp edges (difference circled in red). Can there be an easy way to toggle between rounded lines and sharpened lines added, similar to what adobe illustrator and other vector editors have?

When a line is created in the vector editor, it automatically has rounded lines. However, when a shape is created and then a part of it is erased, you can make a line with sharp edges (difference circled in red). Can there be an easy way to toggle between rounded lines and sharpened lines added, similar to what adobe illustrator and other vector editors have?