This might or might not be an easy bug. Not to be confused with: https://github.com/sindresorhus/refined-github/issues/3347
On responsive pages, like this issue, tabs will disappear into the dropdown menu:

On non-responsive pages, where shouldn't be a dropdown menu, but more-dropdown forces it to become visible and sticky to the right side of the window.

The solution should be to ensure that its container has the correct minimum width and does not "fit the window" on non-responsive pages.
Example URL: https://github.com/sindresorhus/refined-github/pull/3547
I found the solution: testing needed. Stick this CSS in the CSS field and let me know if you have any issues in the following days:
main > :first-child {
position: relative;
}
I found the solution: testing needed. Stick this CSS in the CSS field and let me know if you have any issues in the following days:
main > :first-child { position: relative; }
Tested the past day with no issues and issue fixed
3 days with no issues. @fregante you want to push to master or I should open a pr?
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Tested the past day with no issues and issue fixed