For what it's worth, it bears keeping in mind that the tool that you are likely using does not report activity on any parts of the codebase that you personally don't have permission to view. Also, many teams keep codebases out of the standard code store, either in alternative self-managed version control systems or on GitHub.
There are jokes about "retiring to retail" among more senior engineers in AWS. There are a lot of older low-activity codebases where the pace is slower and someone senior can essentially retire-in-place. There's also a massive diversity of teams in retail. But yea, as far as I can tell most everyone would rather work in AWS, and nobody in AWS seems to seriously consider the possibility of transferring to a team in retail.