Ribbon

Ribbon is a scrolling window manager for Mac. Windows sit side by side on one strip past the edges of the screen, so nothing ever shrinks and nothing hides. Swipe, and the next window slides in at full size. Works with trackpad gestures, keyboard arrows, and your mouse, and it warns you if another app already owns the same swipe.

It stays out of the way: no account, no subscription, no installer. The site has a browser demo, and guided setup has you swiping in about a minute.

$15 once. 7-day free trial, 10-day refund, use on up to 3 Macs. macOS 14 or later, notarized by Apple. Buy through Polar.