Thanks.
You mention async replication between the 2 sites?
I found another post, where you mention kinda a similar setup. But in our case this should not be for DR, but we need it as an secondary working site, so the solution does not fully apply.
Ref: Cluster achitecture - #4 by bthnklc
How should det async setup be done between the 2 clusters? Delegate 2 nodes as “primary” for this purpose, and make them multimaster sync ? Im aware that if we do maintenance on this node then, or if an site dies, the replication will be interrupted and/or fall behind.