An update from GitHub: https://github.com/orgs/community/discussions/159123#discussioncomment-13148279
The rates are here: https://docs.github.com/en/rest/using-the-rest-api/rate-limits-for-the-rest-api?apiVersion=2022-11-28
- 60 req/hour for unauthenticated users
- 5000 req/hour for authenticated - personal
- 15000 req/hour for authenticated - enterprise org
60 requests per hour per IP could easily be hit from say, uBlock origin updating filter lists in a household with 5-10 devices.