Currently, the Proton Mail app (beta) for Linux does not have text search (CTRL+F) for finding text within an open email or in the view currenty opened. It would be enormously helpful to have inline text search to quickly find specific text in an email, and without it, the app is hard to use for day-to-day needs.

This is different from the search bar at the top that searches email subject lines, header info, etc.