Except when I copy something on my iPhone and Paste does nothing on my Mac sitting right next to it. At home, connected to home wifi, everything on the latest OS, BlueTooth (as always) enabled, logged into the same iCloud account etc etc. But then I magically restart Mac or iPhone and Copy/Paste between them starts ‘magically’ working. Continuity, iCloud tabs, Copy/Paste, AirDrop and similar near-network tech has been very unreliable for years on Apple devices. I don’t know exactly what stack does it rely upon (probably a mixture of BT, Bonjour, IP, WiFi, god knows what else), but it’s just unreliable. I sometimes want to send pictures to my wife and she insists on iMessage because she unknowingly and instinctively associates AirDrop with problems and frustration.
I don’t use all of the Continuity features but I have noticed it’s slightly better with my iPhone 17 Pro and MacBook M4 Pro - whether it’s to do with the new networking chip on iPhone when it comes to AirDrop/Copy and Paste - who knows.