Yes. This can be a problem, at least if you don’t know about it in advance. I keep precision set high while modeling and use the cutlist as a quick way to check dimensions. Although Precision is set to 1/64 in, when I’m working in Fractional units, I don’t normally make components with dimensions in 64ths. Seeing 64ths or tildes in the cutlist raises a flag so I know to go look at the components involved. For example here’s the cutlist for this table. The knees (the curved pieces between legs and aprons show dimensions that I wouldn’t intentionally create. In this case, however, I’m not surprised by those dimensions and I know to make the blanks slightly oversized to accommodate the pattern for laying those out to be sawn.
Profiles is a style setting. In the Styles panel click on the house icon to choose the In Model styles. Then select the style thumbnail and click on the Edit tab. Choose the wireframe cube below the tabs to get to the Edge settings. If you make a change to the style, there will be a couple of curved arrows on the large thumbnail at the top. If you want to keep the style edits, click on the thumbnail to update the style.
As for Solid Inspector 2, that’s an extension. Get it from the Extension Warehouse. Go to Window>Extension Warehouse and search for it. Then click Install.