Could be the page loading or resizing content as you scroll, which makes the browser suddenly adjust your position. An extension could also be interfering. Does it jump at the same spot every time? Try the same page in another browser or with extensions disabled.

Hi @BananaOfficial 👋🏼 ,

Could you share a bit more details so I can pass this along to the proper team to investigate? If you could share the browser and version as well as any screen recordings that would be helpful. Thanks for reporting this!

This sounds like a possible browser-specific issue or interference from an extension, although the exact cause is not clear from the description alone.

I'd suggest trying these steps first:

1. Open GitHub in a private/incognito window and reproduce the issue. Make sure extensions are disabled for that session.
2. If the problem persists, try another supported browser and check whether it happens on multiple long GitHub pages.
3. Clear your browser's cache and cookies, then test again.

GitHub's official troubleshooting guide recommends these checks for unexpected website behavior: https://docs.github.com/en/get-started/using-github/supported-browsers

If the issue continues, sharing your browser and version, operating system, scrolling method (mouse wheel or touchpad), and a short screen recording would help narrow down the cause.

Does the jump happen in an incognito window with extensions disabled, too?