Title is fairly self-explanatory, basically you can find this in the “Uncategorized” section of the objection insertion tool.
Hole and SkateboardPlatform especially were deprecated LONG ago, I have no idea why anybody would still use these.
Newer developers may see these instances when experimenting in studio, and may have deprecated assets in larger projects.
A possible solution would to have a clear signification of their deprecation, such as a [DEPRECATED] tag, or a strike-through on deprecated instances. Either that, or have them be hidden entirely, with an option in the settings or insertion window to show deprecated classes.
Odd. It’s always been default for me. Possibly because I got studio long ago (although unlikely)?
It may be a bug that it’s activated, because I don’t change settings unless needed.