When moving from Windows to macOS as my daily driver I really missed the window management keyboard shortcuts and ability to easily snap a window to the left/right of the screen or maximize windows. Magnet gave me everything I wanted and the price was right. I highly recommend it. Even at $4 it’s well worth the price given how well it works and it’s regularly updated.
That being said, reading this thread I’m realizing how many great options there are for these kind of scenarios on macOS.
Snap left/right and maximize are actually built-in by using "Tile Window to Left of Screen" and "Tile Window to Right of Screen" from either the Window menu or option-clicking the green window button:
There's a preference to make double-clicking the window titlebar fill the screen instead of minimizing. And you can add a keyboard shortcut for this too:
That being said, reading this thread I’m realizing how many great options there are for these kind of scenarios on macOS.