How about a cloud storage system, like Google Drive, but without Google and fully encrypted? I would love to have that and for my having the VPN, Mail and Cloud Storage all from the same company would make everything easier. Also, have you thought about making a Mail + VPN plan?

Include a way to share entire folders within ProtonDrive, instead of just individual files.

This can be done by integrating a zip function to compress all files/folders together.

Setting timezone instead of taking it from system.
I think there is a real privacy issue of including the system timezone on emails for webmail (please help us understand if this is not the case).

Could this please be based on the timezone the user-specifies (or default to system/browser if none is specified).

Please add a service like Microsoft Onenote so that notes are safe too.
In combination with ProtonDrive it would be great.
Please develop a iOS-App, Android-App and a Windows-App so that there are the same possibilites like in Microsoft Onenote.
Pencil-Support for Tablets is also very important.

I would love to have in Proton Drive also folder sharing with permissions options like access expiration by date, particular email addresses or available link for external access to particular folder for limited time with an option to view who nor how many times the file from Drive been download.

Set a reminder for events you put into Proton Calendar where it'll send you an email X number of minutes/hours/days ahead of an event you put on your calendar.
When Proton Calendar is either incorporated into the Proton Mail app or comes out with its own app, have it send push notification, text, email, or all three as a reminder.

Already i'm loving Proton Drive but want to be able to use it from my network folder on my laptop rather than log into a web portal. I also want to be able to access those files from my mobile.

Any plans to be able to sync from laptops?

Export for proton mail calendar.I am using calendar as log book and export feature is needed.

Add Birthday calendar generated based on the birthdays stored in de contacts list.

Could we please have a feature similar to this https://hey.com/spy-trackers/?

I would like to have an option to hide some of the default folders from the side bar and put them under a "more" drop-down menu or something similar. And an option to re-order default folders would be nice as well.

Secondly, most of the time I don't want to see messages I've deleted, in the "All mail" folder. A toggle to show and hide trashed emails would be great.

Be able to search the uploaded files

Separate email addresses are for separate things so it would be helpful to just click an email address from the menu and see only those emails sent to that specific ProtonMail address.

There should be definitely, and fast, a "search" option in Proton Calendar.
One has to be able to find a word, a name, an address etc, instead of going back searching day-by-day this item.

For occasional, repeated events which are not regular enough to create as recurring events I'd like to be able to "duplicate event" so that I can quickly just change the date of the new event where times, locations and other details stay the same. Particularly until there is a calendar app, this would make the browser experience on a mobile device much smoother. This is a feature offered in google calendar.

It would be very useful to be able to configure the Protonmail bridge through the terminal so that it can be integrated into other systems such as Nextcloud

ProtonDrive
It would be nice to have a file preview. doc, xls, pdf, txt
But I know it's in beta