Currently, Proton Mail lets us organize by Folder or Label, but not both at once. When we open a folder like Shopping, we see every email mixed together. We can't instantly filter that view to show only the items we tagged, for example, with Return or To Do.

Because of this, many of us end up giving up on folders entirely to avoid the clutter, relying solely on labels. Others create deep subfolders (like Shopping/Returns) just to find specific items, which hides emails and slows navigation.

We would love the ability to filter a Folder's contents by a Label. This would let us keep a simple, flat structure while instantly narrowing our view to find exactly what we need.

Common Scenario:

- We need a flight confirmation or a return receipt from last month.
- Currently, we scroll through hundreds of emails or guess which subfolder holds it.
- With this feature, we could click Travel or Shopping folder, filter by Receipt label, and see the result in seconds.

This change would help us stay organized efficiently, combining the best of both worlds without extra clicks.