Not keen on the thin font and pinning and flagging not being solid. Have barely any impact.
Sierra Harrison commented
This outlook is not helpful and is actually hard to find priority emails. The pins and flags are now hollow and not a solid feature. The category labels now can barely be seen. I used the labels to show certain emails I needed to make as a priority based on where they came from. Now it gets lost in this new version. There are no dates on the pinned emails. I really liked the outlook before this. This is terrible.