Power Automate - How to auto increment an id when a new item is added - Community Question

This video is based on a community question 'How to auto increment an id when a new item is added'

https://powerusers.microsoft.com/t5/Building-Flows/How-to-auto-increment-an-id-when-a-new-item-is-added-calculated/m-p/2793921#M313995