I wouldn't call it a disaster, but I wouldn't use 22.03.x on ER-X either, because this patch didn't make it in 22.03: 2 Gbps WAN/LAN NAT Routing on ramips MT7621 devices
But when you'll switch to the next release containing that patch you'll want eth0 as WAN so you might want to rethink your setup a little (and maybe switch to master builds).