How Much Chatter Is Acceptable

I am new to machining. I ran a few parts and was getting help on the Fusion 360 Cam forum to improve the bottom finish.

Someone with lots of experience noted that my parts seemed to show chatter on the edges. Is this amount of chatter normal for a PM-833? The person who commented has very high-end machines.

I went back and looked at a part Dr. D machined for me and the edges look the same as my parts.

Thanks… Richard