@sally @SuperDicq @Suiseiseki @thatbrickster
I recommend posting such information on the Trisquel Forum.

On the other hand, I tried to create a Telegram account using the client provided by Trisquel, but I received a message that says: "Please enter the code that was sent to you via Telegram or log in via QR code. If you haven't signed up for Telegram yet, please register from your phone or tablet first".

I also tried to register a Telegram account on LineageOS by downloading the official client from Aurora Store. However, when I reached the screen where I need to enter the code, it indicated that the code was sent to me via SMS, but it never arrived. I assume that Telegram does not allow account creation without Google Play Services, as I tried to register an account using the official client from the Play Store on an Android device, and the code just arrived via SMS.

No GNU/Interjection required — I am aware of how proprietary all the mentioned software is, although I am not completely sure about Telegram.

I would appreciate it if you could check whether this is just an unexpected error or if there is another underlying issue.