We are just starting our updates and in all updated instances the OpacNavRight entry hasn't been migrated correctly. The entry in the news is only added for one language, instead of all languages (default doesn't exist in 20.11 yet). So this requires a lot of manual work after the updates.
I realize we might just have to live with this, as there won't be any new versions for 20.11 and lower. We could only fix it for those librares making a bigger jump in the old database update.
It is rather annoying. What bug number provides a default instead of English only?
Default is a 21.11 feature done with the "rename tools" bug 24387. So in older versions the prefs were added to each language to not break behaviour. It worked for header, credits and such, but not for OpacNavRight.