Questions about backup with root on FP4

Help Fairphone 4
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1

Hello,

I’m currently using a custom rom on my FP4, but I want to flash another one. Because seedvault doesn’t do a full backup (not all of my apps can do it), and I’m not sure if configurations of the apps are kept, I want to do a backup using root access, but I have some doubts:

  1. Does rooting my device, then (when I finished everything) unrooting it, void the warranty anyway?
  2. Is work profile included in a backup with root access? (If it matters, I’m using shelter)
  3. I accept better ideas other than briefly rooting my device, but I don’t think there are.

Thanks!

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