To implement an active-active disaster recovery solution that limits user connectivity strictly to West Europe and North Europe while ensuring they see only a single workspace in their Remote Desktop client, you must configure a single host pool that stretches across both regions.
Because an Azure Virtual Desktop (AVD) host pool control plane can contain session hosts located in any Azure region, a single host pool natively presents users with exactly one workspace and one desktop icon.
Detailed Implementation Steps
1. Expand the Network and Identity Infrastructure [Skip]
An active-active deployment requires the secondary region to independently support active user logons at any moment.
-> 2. Deploy Session Hosts in North Europe
Instead of creating a new host pool (which would create a second workspace or icon), you will add new capacity directly to your existing host pool.
Generate a registration key from your existing West Europe AVD Host Pool.
[B] -> Deploy five new session host virtual machines directly into the North Europe VNet.
Configure these virtual machines to use the exact same base image as your West Europe hosts for consistency.
[E] -> During the deployment wizard or post-deployment script, install the AVD Agent and register these 5 new North Europe VMs into the existing West Europe host pool using the generated registration key.
Reference:
https://learn.microsoft.com/en-us/answers/questions/1183590/avd-bcdr-single-host-pool-stretched-across-2-regio