As far as I understand this is not distribution based issue, but something that happens with newer GTK versions, and thus all newer Ubuntu releases after 20.04.
So whenever I have a toolbar in an app (LibreOffice, Terminal etc.) ALT + F for example selects the Files tab. Like so:
This however overrides any application specific shortcuts like CTRL + ALT + F (insert footnote). I don't use these mnemonic shortcuts so I would be better off with them just disabled. So how should I achieve that? Ubuntu shortcut options did not have these listed.