Hi,
It appears you can use PAD in an environment other than your company's default environment. For example, this is taken from a serverlessnotes.com article:

You can see in the top right this image shows "Environments DevOps-Dev". However, in my PAD it just says "Go premium". This suggests that only premium users can use PAD in non-default environments, right?
Also, shot in the dark, but if the user is Premium in Power Automate, is it also automatically premium in PAD?
Thanks