Proton Mail's webmail/etc still shows archived sent emails in the Sent folder, but currently they disappear from the Sent folder provided by the Proton Mail Bridge, which I find really frustrating as it means I can't find all the emails I've sent (in one place) & think they've been lost or never existed. GMail doesn't have this weird behaviour.

Please add an option so that the Sent folder still contains archived emails.

It would also help when using "imapsync" to migrate emails from GMail.