feature request - branch - allow view main file update details

I’d love to request a feature enhancement to the branch feature under org/enterprise license. 

current workflow

• work in branch
• click update from main
• only see high level changes 
• click apply 

proposal

• work in branch
• click update from main
• see high level change
  • click into high level change to see actual diff 
• click apply 
  • or fix in main

user need

• when apply changes from main, it is hard to know the detailed changed on a frame, esp. when this is an updated from a different team member achieved with a different branch
• on high level previews, when the change seems to be a mistake, it is hard to know where in the main file should we fix it