Delete the installation directory.
Remove the following directories:
Syntax ~/.config/JetBrains/<product><version> ~/.cache/JetBrains/<product><version> ~/.local/share/JetBrains/<product><version>
Example ~/.config/JetBrains/IntelliJIdea2022.2 ~/.cache/JetBrains/IntelliJIdea2022.2 ~/.local/share/JetBrains/IntelliJIdea2022.2
References
https://www.jetbrains.com/help/idea/uninstall.html#standalone