"All Inboxes" setting for the new Outlook that is part of Windows 11 (not Office)

For anyone that requires unified mailbox you can get that feature free with Mozilla Thunderbird mailbox app. I don't know why Microsoft is forcing people to move to Outlook when it can't even do this basic feature, why would anyone want to downgrade so they can pay for features 'later'. Seems everything with Microsoft is turning for the worse...

The worst part is, Microsoft uses a thinly veiled lie when they call something a "work in progress" when such easy functionality already exists in the current software by a different name. It is deceptive and legally actionable as an attempt to upgrade someone with a paid product, when we already paid them dozens of times when we bought computers with realistic expectations of services within their platform.

My position is exactly the same. Why is Microsoft releasing a product that is inferior to the Windows Mail that we have now. After immediately installing the New Outlook, I just as quickly got rid of it after discovering that it did not have a linked Inbox. Microsoft claim that New Outlook is a work in progress. Then please speed up th8e progress and keep the existing app available until this full functionality is included. and keep us posted as to this "progress".

I can't find a unified inbox in the Outlook included in 365 either.

I am using Windows 10 and there's certainly nothing like this in my version.