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This is after forcing login to a store account:
At least they don’t hide in their ToS that:
“l agree to let Walmart monitor my use of Walmart WiFi, including to:
- Determine my presence in Walmart stores
- Associate information about me with my Walmart account
- Improve products and services
- Gather market insights about my in-store purchases and activities”
But that’s not enough, they need to monitor your internet activity further too.
For further reading, some greatest hits (the section headers on Wiki’s Criticism of Walmart):
- Local communities
- Allegations of predatory pricing and supplier issues
- Labor relations
- Poorly run and understaffed stores
- No AEDs in stores (automated external defibrillators)
- Imports and globalization
- Product selection
- Taxes
- Animal welfare
- Midtown Walmart
- Opioids settlement
Apple appears to be double dipping. I don't use apple products beyond a MacBook. Why for example the laptop has a unique advertiser id (which looks like it can't even be disabled in newer os versions)?
A lot of the things stored in iCloud are end to end encrypted. That includes all of your messages and attachments in iMessage and all of your bookmarks in Safari. Apple simply can’t use those things to advertise at you.
As far as other targeted advertising, Apple doesn’t track you across apps. In other words, searching for something in the App Store won’t result in different ads in Apple News. And doing anything in any third party app won’t affect any targeted ads in any Apple app. (https://support.apple.com/guide/iphone/control-how-apple-delivers-advertising-to-you-iphf60a6a256/ios)
You will still see targeted ads on iOS in third party apps, because Google still tracks you in an app if it uses AdMob.
All OS have advertising ID. Windows does, macOS does (TIL from you), Android and iOS do. Linux doesn't for obvious reasons.