Bonjour,
We are currently using WMF 5 (0aac639) and Vector 2022, since the activation of Table of contents, we notice that this one is not necessarily displayed at the first viewing of the page, and that it is sometimes necessary to refresh it so that it appears.
Once this is available, an additional shift is observed on the right side of the page where the two margins (right-left) are not equal:
See also our production site (activated by default): Fallout-wiki.com
Thanking you for your work,
Sincerely,
Kims