Is it possible to compare changes across multiple revisions using TortoiseGit or another tool?
I have used TortoiseSVN for many years now. In the log window, I could select multiple revisions. This would give me all of the files that changed across the revisions. At a file level, I could see all of the differences in the file across all of the revisions.
Select the two revisions you want to compare and then select "Compare revisions" on the revision list context menu.