Hello Stéphane, thanks a lot for sharing this information. It helped understanding OVN. I think is good to let the incus manage all the address space, and with this I come with a question:
if I create a bridge (normally /24), and we create several OVN networks (of course will be limited to maybe 252 IPs for the routers of the OVN networks), if we create another bridge and use that new to create more OVN networks, can we connect two OVN networks in different bridges using: peer routing relationships like in the doc: How to create peer routing relationships - Incus documentation ?