The Stars and Bars isn’t the same as the Confederate battle flag. The Stars and Bars was the CSA’s first national flag and it resembled the Stars and Stripes to such a degree that it caused confusion. Later versions of the Confederacy’s national flag had the battle flag in the canton.
The battle flag itself was square. The Confederate Navy Jack is what most people imagine to be the Confederacy’s national flag.
The CSN second jack (1863-1865) is the rectangle version. A similar rectangular version was used by the Army of Tennessee later in the war.
Neither are usually commented on ... I did have one person ask me if the Stars and Bars was the flag of some South American country ... and another person asked me if I was impersonating a brigadier general by having a one-star bumper sticker.
To both, all I could do was shake my head and sigh ...