Does Umbraco Cloud support creating preview environments somehow? If so, is it possible to automate? By preview envs I mean the approach of easily setting up an isolated environment for a specific branch/commit/tag, with the purpose of testing/showcasing a single change before accepting etc.

Not currently possible, you could somewhat manually do it by creating a new dev env, push your code to it for testing, and then delete it again afterwards. But you would not be able to automate it, and you would need to really know what you are doing to not create issues for yourself

Thanks for the info Jemayn

Wish branching would be introduced 😔 , one of the main areas of functionality that the cloud is missing IMO