Outlook on Apple watch not receiving emails when phone is out of range

I'm unsure whether this is a fault or by design. However, google brings up nothing...

I have an apple watch cellular and when away from the house without my phone the watch doesn't pick up new emails.

When watch and phone are within range new emails are then shown. So no issue with sync.

As per Use your Apple Watch without your iPhone nearby - Apple Support (Apple state that their native mail app will work) which it does and I’ve tested. No mention of outlook though.

Is the outlook watch app purely just a notification extension of the phone app? Therefore, it does not contain the accounts & OAUTH token to sync on its own? I have to use outlook for my corporate email.

Any help appreciated...

I’ve contacted Microsoft support via the outlook app and their response was

“Apple watch with cellular data, should stay connected even when you are away from your iPhone. That means your Outlook app should still be working as well.”

However i truly don’t believe this statement. It’s almost like the app is just an extension of the phone and not able to work independently.

I think it should be clearly available online between the tech giants as to whether this works or not. Point 3 here also contradicts Microsoft’s statement.

https://support.microsoft.com/en-us/office/why-is-my-mail-calendar-information-not-up-to-date-on-the-outlook-app-for-watch-e5e4a842-e2d2-4216-9ab0-e83609fe34d3