VPNs are level 3 while interface bonding is level 2. You’d have to create a vxlan over wireguard. It sounds like a nightmare but it would be interesting to implement.
I’m just gonna leave this here: https://docs.zerotier.com/protocol/#bridging
Disclosure: I work at ZeroTier :)
I’m just gonna leave this here: https://docs.zerotier.com/protocol/#bridging
Disclosure: I work at ZeroTier :)