Service Request Form Calls from Workflows

Some processes require multiple forms to be filled by different people in different stages. When translating this to a workflow, it always results in suboptimal solution that requires too much manual work from the agent.
Instead, after a step, the workflow can send a task to a person to fill a form, result of which can be added as a child ticket to the initial ticket that triggers the workflow automation.
Also, having invisible service request forms that can only be accessed by their URLs would be really good. This way, only the person, who needs to fill the form at a certain stage, can see and access it through a certain link.