How can I contact Tg with a technical issue? (I only left them messages in form of comments on their X page) I simply can't install a new app on my GOS 📞, it tells me to type in the code on the OTHER 📞, where I had already unistalled the app. After reinstalling, it obviously does the same thing. Either way the code does not arrive. I need this app as my eyes on what's happening in the world. I would recommend TG only for that reason, not necessarily for communication but this community is well aware of that.
Thank you.
P.s. I had a Tg app up and running but I couldn't update it without reinstalling it, that is how the problem has arisen.

Telegram will not send code to a new device if the bootloader is unlocked or if the play integrity doesn't pass. You need to either go back to the stock ROM and lock the bootloader in order to use Telegram or borrow a phone (with locked bootloader and Play Integrity passed) from someone in your family, login to Telegram on that device (You will now get SMS code). Now when you try to login to Telegram on the device running GOS, it will sed the login code to the Telegram app running on the other device and once you login, you can sign out from the other device.

    SoulKeeper I set up a new Telegram account not long ago on my phone running unmodified GrapheneOS.

    Are you talking about a recent change, or maybe there was something else causing the registration issue?

      other8026 If you have an existing TG account which you are trying to login to a device with unlocked bootloader or Play Integrity as failed, Telegram will not send SMS OTP to that device and instead will ask you to get the OTP from an already logged in device )even if you have no logged in device). I confirmed the same with Telegram developers. They said they did this for security. I am not sure how it works when creating a new TG account.

        SoulKeeper okay. That's good to know. I registered the account but I haven't yet tried logging into an existing account. Definitely going to avoid logging out now.