I kinda trust them, I don’t have any important files on Drive, but I have all my photos on Google Photos, which especially with these Drive files lost news, is not a good idea. I think I will transition to Immich which I already have set up, so I, and only I have control over my data, and it’s also free for 5x as more storage (because of an 1TB external hard drive)
That does not say that “personal information” refers to things you store privately on Google services. You can still turn off ad personalization anyway.
Here is a quote from Google Safety Center’s ads and data section:
We never use the content you create and store in apps like Drive, Gmail, and Photos for ads purposes.
They definitely scan your photos, but definitely not to personalize ads.
Also, you can easily turn off ad personalization in your Google account.
As for building their AI system, this is also true but it’s opt-in. It allows your photos to be shown to people using Crowdsource to help improve Google AI.
Switch: NXBrew
Android: dFast, Happymod and if you can’t find a modded version of it, try patching with Lucky Patcher.