Earlier quoted context omitted.
While I'm not going to argue your preference for a trackpoint, dragging with a trackpad is not as you describe. You just leave your thumb "clicked" and reposition your index finger. IME, using a trackpoint is okay for smaller laptop screens, but going from monitor to monitor kinda sucks.
macOS has an option (in the accessibility prefs) to enable three-finger trackpad dragging. It's incredible to use, especially in concert with Magnet (a window management app). Three-finger-drag a window to the top of the screen and it's instantly maximized. Selecting text is also a breeze.
Sounds like a lot of work compared to any good tiling window manager. Windows should be automatically maximized on opening, unless there are others on the desktop, in which case just hitting a two finger key chord should do it without requiring contorting a wrist or moving an entire forearm away from the home row.