Trying to settle in on a Mac coming from Linux yields a
ton of moments like
> What the fuck? The window manager can barely manage windows!
> What the fuck? The volume mixer can't mix volumes!
These are the core functionality of the desktop environment. It's a whole host of absolute basics that are missing.
This also extends to lower levels. The filesystem has huge chunks of functionality missing to the point that it seems to basically defeat the point of running a CoW filesystem at all. Containerization support is pitiful. What the hell happened to multimonitor support?
Setting up your first Mac as a Linux user ends up feeling like a ton of work involving a ton of disappointing dead ends. That's what GP means by 'unusable'.
It's worth noting that this is not about being accustomed to doing things only one way. Most of these unmet expectations in DE functionality are part of a common minimum among Linux DEs. Sitting down at a GNOME desktop and getting to work is not nearly as frustrating for a Plasma user as trying to limp along with the builtins on the desktop that macOS provides.