@DeletedUser459 I really like using a Macbook from a privacy perspective. It feels significantly less invasive than Windows, and will only ask for permissions for something once, rather than asking until it annoys you into saying yes. However, there are a couple of privacy things which irk me.
Despite there being a tab in the settings called "Privacy & Security", this does not contain all the privacy settings. It has a lot of them, but not all.
Be sure to go into Settings > "Apple Intelligence & Siri" and turn off "Listen for" "Hey Siri".
Also click "About Siri, Dictation & Privacy..." and look over Siri learning from specific apps. Supposedly learning is done on-device, but its a personal preference whether you want this.
Open Settings > "Spotlight" and turn off "Help Apple Improve Search"
In Settings > "Screen time" > "Communication Safety", turn off "Improve Communication Safety".
- This will only matter if you have "Communication Safety" turned on.
Under Settings > "iCloud", turn on "Advanced Data Protection".
- This end-to-end encrypts most of any icloud data you have—not all though: https://support.apple.com/en-us/102651. This is a must. Without ADP, a significant portion of any data you back up to iCloud is encrypted with keys Apple has, including the encryption keys to your E2EE iMessages (if you iCloud backup your iMessages).
- Be sure to save any backup codes or set a friend/family member as a recovery person. If you forget your Apple account password and don't have the recovery code or a designated recovery person, all your data will be lost.
- https://support.apple.com/en-us/108756
The following are specifically for under the "Privacy & Security" section. Take a long look at all the settings here, but I have highlighted a couple of the major ones.
- Under "Analytics & Improvements", turn off everything.
- Be sure to scroll all the way to the bottom of the "Location Services" menu, click "Details" next to "System Settings" and TURN OFF MAC ANALYTICS. In my opinion, this is Apple's 2nd sleaziest setting, hiding it all the way back here.
- Under "Apple Advertising", turn off "Personalized Ads".
Now for Apple's 1st most sleazy privacy setting:
- Open up Safari App
- In the top left corner of your screen, the taskbar, click "Safari" > "Settings" > "Advanced", and turn off "Allow privacy-preserving measurement of ad effectiveness".
In my opinion, this is by far Apple's sleaziest setting. It is not in the normal settings menu for the rest of the mac, it is in the settings menu specifically for Safari. Then, it is not under the Privacy settings for Safari, it is under the "Advanced" settings. And the cherry on top: they use a multi-variable condition:
A = ad measurement
P = privacy preserving
ON -> A and P
OFF -> not (A and P) -> De Morgan's Law -> (not A) or (not P)
Which begs the question: when the setting is OFF, is it not measuring ad effectiveness at all? Or is it still measuring ad effectiveness, just in a not privacy-preserving way? Here is a Wikipedia explanation of De Morgan's Law: https://en.wikipedia.org/wiki/De_Morgan's_laws
I recall there being a page on Apple's site for developers that does actually explain that turning it off means ads effectiveness is simply not measured, but I am unable to find that page right now. It shouldn't be this hard to find that information, and IMHO, this is Apple's sleaziest setting.
These are the major privacy settings I can think of off the top of my head. I hope I am not missing anything major. And I apologize if injecting my opinions into the message here is off-putting or harms my credibility on the matter, but I have very strong feelings about some of Apple's privacy settings decisions. Good luck with your Apple journey!