For those of you using web-based email, there is a solution. Perhaps not the simplest, but I'm happy. I use Outlook as a stand-alone client on my computer. Not their web-based Outlook. Some folks call it Look Out.
I have a lot of email addresses for various purposes on a number of servers / providers. It would be a colossal pain to go to each site via the web, log in and process email. Outlook is connected to all my accounts. IMAP or POP doesn't matter. Best of all, they all appear the same in Outlook. One client for all my email needs. It is a bit of a headache to set up with Gmail and Yahoo, but if you follow the directions it's do-able.
With Outlook as a single client, I'm not subject to the whim of one provider "improving" their interface and confounding me. Yes, Microsoft can wreak havoc and confound us. At least that appears across all my accounts, in one place. Thankfully, Microsoft doesn't mess too much with Outlook and they do support it.
Oh yes Microsoft does. Never move to te "new Outlook" if you can avoid it. All sorts of things "under the hood" are altered, and the methods of returning were designed by Elon Musk!! Dave_n