How to install cubeIDE on linux mint . I'm a new passionate engineer looking for hands on experience with stm32 boards

There's an installation guide right here that will hopefully help you get started.

The three steps outlined for Linux are the following:

1. Navigate to the location of the installer file with a command console on the host computer.
2. Enter the following command in the console window: sudo sh ./st-stm32cubeide_VERSION_ARCHITECHURE.PACKAGE where VERSION, ARCHITECTURE and PACKAGE must be entered after the selected Linux® package.
3. Follow the further instructions provided through the console window