I have a degoogled profile with MS Excel installed. Within Excel I am logged in to my company account. That works fine.
I would like to use the company calendar without installing Outlook. I was told to add a Microsoft account under Settings->Accounts->Add accounts where there indeed appears Microsoft 365. But when I tap on it it says "open Excel or Word or Powerpoint or OneNote to add an account". This is shown while Excel is running. Nothing happens thereafter.
A similar question in this forum has not been answered.
How can I get this fixed?