Migration Assistant is a tool that allows you to transfer your data, apps, and settings from one Mac to another. To use Migration Assistant with two Macs, you need to have Wi-Fi turned on and the Macs must be near each other. You also need to update the software on both Macs, if possible, and turn off any antivirus, firewall, or VPN software that might interfere with the transfer. You can then launch Migration Assistant on both Macs and follow the onscreen instructions to select the source and destination Macs, choose the content to transfer, and start the migration process. References: Transfer to a new Mac with Migration Assistant - Apple Support, How to Use Migration Assistant to Move Files from One Mac to Another