Dear Maintainer,
   * What led up to the situation?
I deleted all active sessions (?) of my Telegram account from my phone under ”Settings“ → ”Devices“. After entering my phone number in telegram-desktop I didn't come forth because ”Internal server error.“ was shown between ”NEXT“ and my phone number.

   * What exactly did you do (or not do) that was effective (or ineffective)?
I removed (not purged) telegram-desktop to see whether I had ”a wrong“ package version installed, but apt installed the same package again. I used:

$ sudo apt remove telegram-desktop
$ sudo apt install telegram-desktop

   * What was the outcome of this action?
The package ”telegram-desktop“ was removed and installed afterwards in the same version.

   * What outcome did you expect instead?
I thought that another version (like telegram-desktop/buster-backports 2.6.1+ds-1~bpo10+1, e. g.) would be installed, but ”$ sudo apt list -a *telegram-desktop*“ didn't change by re-installation.

I tried to log in telegram-web (https://web.telegram.org) and this works as expected. Therefore, I don't think it depends on my number or a setting within the app itself. But I got a message that this version of Telegram would be outdated and it wouldn't be supported in some time (I don't remember the original terms).
I don't know for how long this behaviour exists, but it seems to not affect telegram-desktop when a user stays logged in/active with Debian (buster). I also recognised the same behaviour with Ubuntu 18.04 LTS since December 2021.

Kind regards,
 Julian Schreck

Hello!

To fix login issue, please install more recent version of Telegram
Desktop. You can use 3.1.1 from backports. It should work.

I mean the buster-backports-sloppy suite that you can activate via
sources.list(5).

Is it something like ”$ sudo apt install telegram-desktop-3.1.1“ or ”$ sudo apt install telegram-desktop --from=buster-
backports“? Where can I find such special things (for future issues)?
Isn't sloppy something like ”quick and dirty“?
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