It would be nice to allow for a popup view of the events for the day (similar to Samsung's default calendar app). For example, if I have my calendar in month view but I click on one of the days in that month, a popup with the events for that day appears. You also have the option to hit the "+" button to add events for that day (taken to the event entry screen) or just tap away from the popup to return back the the calendar view (month view in my case).

Here is an example: https://techwiser.com/wp-content/uploads/2023/08/Samsung-Calendar-Event-Open.jpg (from this page: https://techwiser.com/how-to-sync-samsung-calendar-to-google-calendar-or-vice-versa/)

Right now, in Proton Calendar when you tap a date from the month view, the day view takes up the entire screen and you have to hit back "<" on the phone to get back to your original view (month in my case). It's not terrible but the popup is cleaner and more convenient.