GrapheneOS isn't rooted. PayPal works on GrapheneOS and doesn't try to ban using it. However, they recently shipped incorrect anti-tampering code incompatible with our secure app spawning feature (exec-based app process spawning). It can be worked around by disabling the per-app secure spawning toggle for PayPal. For simplicity, there's a per-app exploit protection compatibility mode toggle which sets all the finer grained exploit protection toggles to the compatibility mode.
