Does it matter? You can do it in Windows 10. You can't do it in Windows 11. That is what is relevant here.
MacOS doesn’t have a taskbar, but it does have a dock that you can place on the left, right, or bottom edge of the screen. It has been an option since the beginning of OS X I believe.
It works in KDE, just as another data point.
Yes, you can. You can't move the menu bar at the top, but the dock can go to any of the other three edges of the display, and its popout items work just fine.
Depends on what you consider the macOS taskbar equivalent.
The one where app icons and open documents live? Yeah, you can move it around.
The one that act as as the menu bar for open apps? No, you can’t.
You can position the Dock to bottom, left, or right.
MacOS also uses less vertical space.
And on the new macs, it takes up the space of the notch so that your apps are still in the un-notched section of the display.