Alternative options for others who find this thread are:
1 – SharePoint 2013/SharePoint 2016/Office 365
In either a Content Search Web Part or Search Results Web Part, use the system provided Items related to current user result source. This result source displays a rollup of all information – items, documents, and web pages - created by and modified by the current logged-in user, regardless of modifications made by other users.
2 – Office 365
On a modern page add the Highlighted Content Web Part. The web part can be configured to show the logged in user their recent modifications by library, site, site collection, and tenant. Microsoft also provided great layout options for the displayed content.
I have a few additional details at: https://jennyssharepointtips.wordpress.com/2018/12/23/create-a-user-content-rollup/