TL;DR: Easy Switch can auto-forward emails, then move your contacts and calendar. But what about:
Google Drive files, Google Photos, Google Password Manager, Google Finance, Gemini?
We should be able to move those data into Proton services Proton Drive, Proton Pass, Proton Wallet and Lumo quite easily with Google Takeout.
And what about autoforwarding from Outlook and Apple or sign in with Apple?
But we can’t.

Dear Proton Community and Development Team,

We propose an enhancement to Proton’s “Easy Switch” technology to maximize user acquisition, engagement, and a more comprehensive way to move data to a more private service, while still maintaining Proton's commitment to privacy and sustainable growth. The current “Easy Switch” model can only transfer emails, contacts and calendars. While understandable for resource management, this can hinder broad adoption and prevent users from fully experiencing the potential of Proton.

Our proposal is as follows:
1. Google Takeout Import:
* Google Takeout has the capability to export logs from 67 Google services including Gmail, Google Calendar, Google Drive, Google Photos, Google Password Manager, Google Wallet, and Gemini. These services are currently matched by Proton Drive, Proton Pass, Proton Wallet and Lumo. This would enhance the already stated email, contact and calendar import by being able to drag in one .zip file and have all of your data imported.
2. External service easier exports
* Sign in with Apple would provide a smoother experience to get data.If this is not possible due to the Apple walled garden, at least provide clearer instructions (e.g. go to icloud.com/mail and enable forwarding)
* Forwarding support from Outlook and Apple Mail.

• This would increase user adoption so that rather than following tedious steps like “open Google Calendar, select all one by one calendars, export as vCard and then upload it into Proton Calendar, repeat for other Proton services” users can just open takeout.google.com, select all Google services matched by Proton and then import as one giant .zip file.
• We believe that this will enhance the potential of Easy Switch and encourage more people to switch to Proton therefore increasing uptake and market stream of privacy focused services.

Thank you for your time and consideration.