on amazon that looks more like a “normal” cutter which looks like a more “nice edge” friendly geometry
versus the “flat” geometry of the whiteside bit part
These are “drill mills” They are endmills that you can drill with. When people say you can’t drill with an endmill, your pull this out of your box.
If you are getting ragged edges, it could be a bunch of different things: Material, feed/speed, dull bit. Also a finishing pass helps alot with V-carves. I personally love the little 1/4" SpeTool V-bits. They are nice and sharp and come to a pretty fine point. They are 4 flute, so I run them pretty fast - 60/100IPM, but I also run a .020" cleanup pass. https://www.amazon.com/gp/product/B07Q5MKPPH/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
Truly speaking i gave only little knowledge on Whiteside router bits But but i can help you. Rather than getting half knowledge its better to spent some time and get full knowledge about it. If you are connecting with me then i would recommend you to read that article - https://theedgecutter.com/whiteside-router-bits-review/
In this they talk about all top whiteside router bits. And i also get some good info for my newly purchase Whiteside RU2100.
So spent some time and get full info before any purchase.