root@Hunter:~# apt install telegram-desktop
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
telegram-desktop : Depends: qtbase-abi-5-11-0 but it is not installable
Recommends: fonts-open-sans but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Este é um exemplo da natureza "instável" de Sid: não há garantias de que ele contém um conjunto coerente de pacotes. Qt5 é transição de qtbase-abi-5-11-0 to qtbase-abi-5-11-2 e todos os pacotes dependentes, incluindo telegram-desktop , precisa ser reconstruído .
Você deve conseguir instalar o pacote dentro de alguns dias.
Os usuários do Sid devem prestar atenção aos pontos levantados em a FAQ instável .