Yes — that is exactly where the idea comes from. OneNote could dock its window to the side of the desktop so it stayed visible while you worked. DeskDock does the same for any program, using the same underlying Windows mechanism.
Install DeskDock, then drag any window by its title bar onto the strip at the side of your screen and let go. It snaps in and stays there. Drag it back out to undock, and the window returns to exactly where it was.
Snap tiles windows against each other, but the next maximised window covers everything.
"Always on top" floats a window over your work and hides whatever is underneath.
DeskDock reserves the space with Windows itself, so the desktop genuinely becomes narrower.
Maximising another window fills only what is left — nothing is covered, and nothing floats in your way.
Up to three per screen. They split the strip vertically and share the height, and you can reorder them by dragging.
Yes. Turn a dock on for any combination of your screens. Each keeps its own width and comes back on the right monitors next time you sign in.
Any normal desktop window — browsers, note apps, chat clients, terminals, Office. Some programs refuse to shrink below a minimum width; those are kept aligned to the right so their buttons always stay reachable.
No. DeskDock does not restart or re-render your programs — it only repositions windows that are already open, so tabs, logins and unsaved work are untouched.
Yes, 7 days. After that it is a one-off $9.99 purchase on the Microsoft Store — no subscription.