Same is possible in KDE. Combined with hot corners, you can become "blazingly fast".

Once a colleague seeing me work looked at my screen, lifted his head and pointed to my colleague saying "Have you seen how this guy work, he's a maniac!".

Mastering the tool you have always brings speed and smoothness into your process, one step at a time.

I don't feel like I've had much issue with keyboard driven workflows on any OS.

Any app can has its extensive set of keyboard shortcuts, but when it comes to DE itself, it's not always the case.

Microsoft has Meta+ and Alt+ combinations dime a dozen, and it's consistent across versions. KDE has extensive programmability which allows you to design you own. Both allows you to pack so many features into a small number of keys and work across applications or in general without thinking.

A terminal? It appears. A window? You call it without thinking. Ran out of space, a new desktop is just an instinct...

On macOS you can also assign a keyboard shortcut to any tool menu the app exposes. This works without the app knowing about it.

I’m a Mac dude through and through but its shortcuts don’t hold a candle to windows alt shortcuts. In windows, alt shortcuts are progressively revealed to the user and the entire UI is operable without having to memorize a series of hand cramping shortcuts.

I'm slightly aware of that, but I'm not sure how this works in real life where almost half of the "native" applications in macOS are Electron apps.

It's alright, but a step down from tiling window managers that you can use on Linux.