Considering that Azure will not roll out an update on paired regions simultaneously during a planned maintenance of virtual machines with single-instance configurations, is it a good strategy to have single instance VMs in two different paired regions (let's say, North Europe & West Europe to cater to Europe customers for a simple workload) to achieve both HA & DR instead of having two VM instances in a availability set in a single region & achieve just HA?
Assuming I'm dealing with a small workload to be used by few users in Europe, is having single instances of sync-ed VMs in a paired region a cost effective & workable approach to implement HA than having two VM instances in a availability set in a single region?