
I’m running iOS 18.3.2 and have the same problem but not only on my iPad but my laptop also. My loss of Copilot seems linked to the renewal of my M365 subscription on 22 March. The solution from MS Community was to ensure that ‘Enable Copilot’ box was ticked (File-Options-Copilot only accessible on my laptop) - it was.
As with Amr L Barky the colourful Copilot icon has disappeared from the top of the screen in Word and no longer appears in the LH margin as I type.
Very annoying.
Just a thought; maybe the AI behind Copilot has taken a leave of absence?