@GlytchMeister see https://grapheneos.org/usage#esim-support

containerized inside itself?

By default, GrapheneOS has always shipped with baseline support for eSIM, where users can use any eSIMs installed previously on the device.

GlytchMeister I guess GOS has the proprietary google stuff needed to make esims work kinda

In order to manage and add eSIMs, proprietary Google functionality is needed. This is fully disabled by default.

never had to download any google nonsense.

eSIM support on GrapheneOS doesn't require any dependency on Google Play, and never shares data to Google Play even when installed.

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Can anyone confirm what turning off esim support after it's installed and working correctly effects? Is it better to have it on or off from a privacy point of view

18 days later

For any future readers, none of this helped me but what did work was going to the Access Point Name setting and hitting the reset to default after i got my sim installed.

5 months later

I have GoogleFi and I had to install the Google-Fi app in order for the esim to be properly provisioned. After that I removed all of its permissions and the phone is still working fine.