In the Codex quest log, the filter settings applied to quests reset to default whenever exiting to the main menu, requiring them to be reconfigured every session.
This is particularly inconvenient for managing old, outstanding quests that are no longer relevant to the area currently being played. Being able to filter these out and have that preference persist would significantly reduce clutter in the quest log, rather than having to reapply the filter each time the game is launched.