Using classic Outlook for Windows in business environments
DIRECT MESSAGE TO ME FROM MICROSOFT SUPPORT====================================
Thanks for sending us a DM, Lou. We appreciate your time bringing to our attention regarding the changes on Microsoft 365 Quick Action button after the recent Office updates.
Let me point you to the best venue to get this addressed. Thanks for the continuous support as you’ve been using Outlook for many years, and we also admire you for representing other Outlook users who also wanted to bring back the old Quick Action buttons. With this, we would suggest sending your concern to our Office Feedback Hub as Microsoft continuously strives to improve its products and to provide a better experience to its consumers. This is also the quickest route to our developer’s ears. For steps on how to do so, please check this article: https://msft.it/6012bkkgo
Through this, our support engineers will be able to collate data and supporting details and might consider bringing back the old Quick Action button as a good ground for future update. Should you have other Microsoft related concerns, please don't hesitate to get back to us at your most convenient time.
Stay safe and healthy. — Toni