[14:50] <schopin> skeer: sorry it took so much time to get back to you. I can't reproduce your issue with what you gave me, putting the output of your first `netplan get` into a single YAML and then doing the successive `netplan set` calls succeeds, and eth1 is added as a br0 interface. 
[14:50] <schopin> (tried both on master and using the system netplan on Jammy)
[14:51] <schopin> keen: ^ (sorry for the wrong ping :/ )
[16:37] <keen> schopin: interesting, thanks!  I'll try the single yaml approach, vs the split into different files approach (vagrant manages part of the interface, so that's in it's own yaml).    
[16:37] <keen> I think the system starts with two files, then the first set creates a new one that just has the bridge.