I use Proton Mail with multiple accounts. By default, Proton Mail (on MacOS) launches to the previously opened account. I would like to be able to specify the desired account to open on launching the application, e.g. with an --account flag.

This would make it possible to create desktop shortcuts to open the desired account. Currently, users must first launch Proton Mail, then click on their currently open account, then click "Switch or Add Account", then click the desired account. That's three additional clicks required to open the application to the desired state.