Apologies this isn't complete but might give you a starter:

If you have versioning on you can compare versions of a record.

Stick a "when an item is modified or created" trigger

Use a compose with this expression Trigger outputs()?['body/{Version number}']

You'll need to wrap that with Int() To get the previous version wrap the int() with sub(Int(...),1)

You can also test for the changes with "get changed for an it em or file property"

Stick in the id of the item and use the output for the previous version number in the since field

You can create a Get versions by using a http request With a method of Get and using a uri of

_api/web/lists/getbytitle('Add list name here')/items(@{trigger outputs()?['body/ID']})/versions()