No, deleting the backend pool in an Azure Load Balancer will not delete the virtual machines (VMs) that were part of the pool. The backend pool is simply a logical grouping of VMs or virtual machine scale sets for the purpose of traffic distribution. When you delete a backend pool:
- The VMs themselves remain intact and continue to operate normally.
- The VMs are just no longer part of that specific load-balancing configuration.
If you need to modify or delete a backend pool, the VMs can still be used in other configurations, or you can assign them to a different backend pool if needed.