Hey there,
I’ve been using Bitwarden on my GrapheneOS for years, without any issue. Since 1Password is recommended on PG, I gave it a try, particularly because I enjoy Large Type feature and UX of 1Password.
Unfortunately, it has a numerous problems on GAPPS-free environment:
- App can be only obtained via Google Play, therefore Aurora Store is needed;
- QR scanner is not working without GAPPS - issue reported multiple times on 1Password forum, it does not let you scan anything. Seems like GAPPS dependency.
- You cannot login to your account on mobile when have U2F key enabled on the 1Password account. Seems like U2F is not initializing on GrapheneOS, and it also seems to be dependent on the Google Services entirely. Bitwarden has no issues.
So, I would add a warning that 1Password is not usable in the environment that does not utilize Google Services, since it is dependent on that with some crucial features like QR scanning or U2F.
EDIT: Someone else also wrote about the issues with 1Password combined with GOS here: https://www.reddit.com/r/1Password/s/DrU1RiQebg