Steps to replicate the issue (include links if applicable):

As seen in T415291

• Ensure "Default to newcomer homepage from username link in personal tools" option is enabled in the settings
• Go to https://en.wikipedia.org/wiki/Main_Page?useskin=vector-2022
• Move focus to the userpage link
  • Observe tooltip shows up: "Your homepage [ ctrl-option-. ]"

• Now scroll down until header is replaced with sticky header
• Move focus to the userpage link again (which now moves into the overflow menu)

What happens?:
Access key is lost. Tooltip title changed

What should have happened instead?:
They shouldn't change. The userpage link hasn't.

This is likely caused by rMW962ad3329b12