Earlier quoted context omitted.
GrapheneOS is not rooted, so you won't have those issues. GrapheneOS also gives you a Network permission per-app; if you uncheck it, the app has no connectivity, period. Highly recommended.
Based on the other comment thread, it seems like Play Integrity and SafetyNet do not succeed and as such, can't really use Netflix, is that correct?
Apparently Google is playing games in the Play Store, but if you can get it installed then it runs fine:
https://discuss.grapheneos.org/d/696-issues-with-netflix-app
I just verified that I could download it just fine using Aurora Store, and I don't have Google anything installed.