I'm 100% for this, but I think you can go even more granular than "gives agents their own inboxes".
Thanks to Action Mailbox in Rails[1], I give all my records email addresses. Eg let ecommerce "order" records accept forwarded emails that are pinned as comments. It opens you up for doing things like forwarding a purchase order and having the PO number pulled out and attached to an order, or forwarding tracking information from a supplier and having it attached to a "supplier order" etc.
In my personal life I have individual email addresses for all my utilities and emails automatically get filed away.
If this idea tickles your fancy, I opensourced Emitt[2], an inbound email processing server with LLM-powered automation.
1. https://guides.rubyonrails.org/action_mailbox_basics.html