I think there was something going about last year where disabling internet connectivity checks stopped an IP leak but i'm not sure if this is related or I misunderstood a previous concern
nostr:npub1c9d95evcdeatgy6dacats5j5mfw96jcyu79579kg9qm3jtf42xzs07sqfm does this Android bug also affect GrapheneOS?
Discussion
This is different and was also misleading on Mullvad's part, it's intentionally designed that way.
We make an explanation on that here: https://grapheneos.org/faq#default-connections
You can also turn that off in GrapheneOS.