I am designing a four layer board with a grounded copper pour on the top layer.
I had my board reviewed by a 3rd party and one of their comments was that the via on the South side of C41 was unnecessary since it is already connected to the top ground pour. I have read on here that it is important to place "stitching" vias across the board to provide solid connections between the top copper pour and the ground pour. I placed the via by C41 to provide a short path to the inner ground plane. But the more that I think about this, it doesn't seem necessary.
For a general purpose circuit board (no high frequency signals, no sensitive analog components), what is best/acceptable practice for placing stitching vias? Are they even necessary? I would appreciate answers that are backed up by theory so I no longer have to "guess" on what is best.