The Meeting details button in Onenote Web app suddenly disappears.

Hello Microsoft Community,

I've been using the Onenote Web app for quite some time now. A pretty handy feature i've always relied on is the "Meeting details" button which allows me to view/insert my calendar/schedule into Onenote.

However i recently discovered the "Meeting details" button suddenly disappeared across both my outlook personal accounts(I have 2 personal accounts). I tried a couple of steps like clearing my cache, switching devices and browsers, but nothing worked.

I also noticed that even though the button disappeared from both my Outlook personal accounts it was still present in both my MS Work & school accounts (My Work and school use Microsoft accounts).

I then reached out to Microsoft Support but they mentioned:

"Looks like For Outlook.com, Hotmail, or other personal Microsoft accounts, the "Meeting Details" button is often missing or non-functional in the OneNote web app. This is because Microsoft does not currently support the same level of calendar integration for personal accounts in the web version of OneNote. I also understand that you have been accessing this feature up until recently. So I would suggest you reach out the community to get this checked for you."

So at this point i'm kinda out of ideas and would love to get your thoughts/suggestions on how i could potentially fix this cause Microsoft isn't helping much

Thanks