Delete youtube-dl and install yt-dlp

$sudo apt install yt-dlp/bullseye-backports

create a symbolic link called youtube-dl to your yt-dlp binary

$ sudo ln -sf /usr/bin/yt-dlp /usr/bin/youtube-dl

search to find the paths if not the same

$sudo find / -name youtube-dl
$sudo find / -name yt-dlp

find: https://www.ertecho.gr/radio/trito/ <- View Page Source

stream: https://radiostreaming.ert.gr/ert-trito

play:

mpv https://radiostreaming.ert.gr/ert-trito

alias:

touch trito
echo '!#/bin/bash' >> trito
echo 'kdocker mpv --player-operation-mode=pseudo-gui https://radiostreaming.ert.gr/ert-trito' >> trito
sudo chmod +x trito
sudo mv trito /usr/bin