Azure Load Testing is now in preview in UK South! This follows the initial preview in November 2021 that brought us Azure Load Testing and the introduction of these capabilities.
Azure Load Testing is a fully managed Azure load-testing service that enables developers or testers to generate high-scale load with custom Apache JMeter scripts. This can be used to optimise performance, capacity and scalability by catching and fixing bottlenecks at scale.”
You can find out all about Azure Load Testing and how to use it in the Microsoft documentation.