The good news is that the macOS ecosystem has matured significantly. Over the years, a variety of excellent utilities have emerged to fill this gap. These modern alternatives are often built specifically for Apple's latest hardware and software, providing a more seamless and integrated experience than a direct port ever could.
: This is a powerful window manager. While the free version Rectangle is great for snapping windows, the Rectangle Pro version includes a specific "Pin to Front" feature. deskpins for mac link
Hold your mouse pointer over the green full-screen button in the top-left corner of any window. Select Tile Window to Left of Screen to lock two windows side-by-side, preventing them from overlapping or hiding each other. The good news is that the macOS ecosystem
: Both apps have a built-in "Float on Top" option. For Notes, double-click a note to open it in a new window, then go to Window > Keep on Top . : This is a powerful window manager