In-kernel WireGuard is on its way to FreeBSD and the pfSense router
Link to relevant announcement email:
https://lists.zx2c4.com/pipermail/wireguard/2021-March/00649...There's also Jason's reply to apparently not-nice feedback of someone from NetGate:
https://lists.zx2c4.com/pipermail/wireguard/2021-March/00649...