Hello, @Eben Krapfl !
Scenario
A small company where all of the developers have Visual Studio Enterprise subscriptions with monthly Azure credits allotted to them. What is the best way to spin up "quick VMs" for devs on different subscriptions?
Recommendation
Have the devs create Compute VMs using custom images:
https://learn.microsoft.com/en-us/azure/virtual-machines/windows/capture-image-resource
While DevTest Labs does have the ability to create VMs using Azure Compute Gallery (formerly Shared Image Gallery), each dev would need to create a separate DevTest Labs resource for themselves and consume the images provided through Azure Compute Gallery. While this would work, it's not an ideal solution and the better route would be to simply create Compute VM resources using custom images.
Depending on your needs, you can also use Azure Compute Gallery which allows for more than 20 simultaneous deployments:
https://learn.microsoft.com/en-us/azure/virtual-machines/shared-image-galleries