@Rhaniery
https://tugaleres.com/2023/01/09/avoir-le-navigateur-opera-en-francais-sur-linux-mint-debian-ou-ubuntu/
( "Eu penso que com os meios de tradução atuais, você não terá nenhuma dificuldade em traduzir para o português :)")
On My Kubuntu
sudo nano /home/vince/.local/share/applications/opera-developer.desktop
GNU nano 8.1 /home/vince/.local/share/applications/opera-developer.desktop
[Desktop Action new-private-window]
Exec=opera-developer --incognito --lang=fr-fr
Name=New Private Window
TargetEnvironment=Unity
[Desktop Action new-window]
Exec=opera-developer --new-window --lang=fr-fr
Name=New Window
TargetEnvironment=Unity
[Desktop Entry]
Actions=new-window;new-private-window;
Categories=Network;WebBrowser;
Comment[fr_FR]=Fast and secure web browser
Comment=Fast and secure web browser
Exec=env BAMF_DESKTOP_FILE_HINT=/var/lib/snapd/desktop/applications/opera-developer_opera-developer.desktop opera-developer -lang=fr %U
GenericName[fr_FR]=Web browser
GenericName=Web browser
Icon=opera-developer
MimeType=text/html;application/xml;application/x-opera-download;
Name[fr_FR]=Opera developer
Name=Opera developer
Path=
PrefersNonDefaultGPU=false
StartupNotify=true
Terminal=false
TerminalOptions=
TryExec=opera-developer
Type=Application
Version=1.0
X-KDE-SubstituteUID=false
X-KDE-Username=