Business Process Flow (BPF) - Automatically move to next stage

[Mrpdl]

Hi All

Would appreciate some advice. I have implemented a Business Process flow with 4 stages. I would like to automatically move onto the next process stage automatically once the user has Saved the record and the Approval has succeeded. The Approval is being achieved using a Flow Step with an "Execute" button to run the flow in the BPF stage and a power automate flow recording the approval details e.g. Comments, Approver name within an Approvals table. 

I have seen a number of posts, but all appear to be quite outdated. I would prefer to use a flow instead of JSON to keep the app Citizen Development friendly.

Any advice on making the next stage automated and slick would be greatly appreciated. 

Thanks in advance.