I just set it up yesterday between two Macs located about three feet from each other, and find it’s flaky. I can move my mouse pointer and keyboard control between Macs about half the time. Other times, the mouse pointer stops at the screen edge.

The Macs are on Wi-Fi. Maybe it’d work better if I connected them with a USB-C cable?

They are a 2024 MacBook Air and 2024 MacBook Pro.