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AnaNg
Hi AnaNG,
Welcome to the community! Quick answers:
- It would be very hard to mess up your phone.
- Yes. To put it in the most basic terms, GrapheneOS is your Galaxy's Android minus Google, but plus additional security & privacy features. Superficially, it looks and works essentially the same.
- Yes. But I would advise against it for two reasons. 1. It is not that hard to install. Juat follow instructions precisely. You might run into an issue, then you just change a setting or try a different browser/computer and try again. Beyond that, ask for help. 2. You don't need to trust a third party (people who'd install GOS for you). A third reason would be saving money.
- Yes. It's trivial to use/transfer TOTP apps. I prefer FreeOTP by Red Hat. Ask for help if you run into issues. Many people here, including myself, would be quite happy to help!
- I abstain from Google, so have no idea what features GKeep has. However, I can't imagine apps like Notally (local) or an excellent Standard Notes (local/cloud) not filling your need.
I would suggest watching a channel 'Side of Burritos', he covers Graphene OS at length. Don't go to YouTube site/app. Use a different front end (basically go to yewtu.be if you don't know what that means). This puts a layer of separation between you and Google.
Welcome and good luck!