Hi pjopaw, welcome to the Linux Mint forums
Thanks for joining the forums and I hope you continue to enjoy using Linux Mint! As Linux Mint is based on Ubuntu, I'm surprised that you found some applications are not translated to Polish in Linux Mint, but are in Ubuntu. Can you give some examples? Cinnamon you can help translate here https://translations.launchpad.net/linu ... s/cinnamon
, but it is currently 100% complete for translation to Polish
Be sure also to check out the Community
website (ideas, tutorials, and hardware and software reviews), and the Cinnamon Spices
website for adding themes, applets and extensions to Cinnamon.
You can also chat in real-time with other Linux Mint users. In the Mint Menu, in the Internet section, start the application XChat IRC. You will automatically get connected to #linuxmint-chat for general chat and #linuxmint-help for support with other Linux Mint users