i see under plugins orphaned wireguard plugin but it's still working luckly.
System: Firmware: Status you can select "Resolve plugin conflicts" and activate "Reset all local conflicts"
i see, they integrated the wireguard VPN by default :)
i deployed a fresh 24.1 in a VM to check
...or simply have a look here before pressing the button
https://forum.opnsense.org/index.php?topic=38427.0
o plugins: os-wireguard moved to core
:-)