Apple’s Universal Control makes it possible to use the same keyboard and mouse to control up to three Macs and iPads (one of which must be a Mac) when you’re at your desk. I think the new feature delivers serious improvements when you need to get work done.
Announced at last year's WWDC, the long-awaited usability enhancement for Mac-using iPad owners took months to test and build before it was finally released this month. You need to be running iPadOS 15.4 and macOS Monterey 12.3 (or later) on your iPad(s) and Mac(s) to use it.