Question:
How can we hide various workflow phases for different account/roles in Workflow Manager?
Discussion:
We can restrict the users/roles in viewing or editing the Workflow phase/Step details by setting up Workflow phase permissions (View/Edit) in the Template as below,

Once that is set, the Workflow for the users who doesn't have necessary privilege's will look like,

In general, by setting Phase/Step permissions in Template, we can hide various workflow phases for different account/roles in Workflow Manager.