I dont trust either in regards to my data - the same goes for Google and Meta for that matter 🙂
But in regards to what I saw in the WWDC video vs M365 Copilot, I have to say I'm looking forward to see what Apple brings in regards to functionality. To be specific it is the actions part I'm looking forward to see.
We have been POC'ing M365 Copilot at work and I have to say that for something they charge 30 dollars a month (with no ability to do actions) the feeling is: meeeh...