This has traditionally been one of the points of attraction for the Mac desktop. It has a higher than average number of native applications which conform to platform conventions and are specifically designed to not stand out.

The best apps there acknowledge that they’re just one of a wide variety of tools the users reaches for regularly and avoid the hubris that comes with use of UI as brand identity. They don’t try to hog the user’s attention, vie for mindshare, or unnecessarily force the user to learn new or foreign UI patterns. They try their best to avoid saddling the user with any kind of unpleasant surprise (even if that’s just ensuring that common interactions work as expected) and they just sit quietly in the background until needed, serve the user’s purpose, and recede again.