To be able to debug Laravel applications during development will give you a huge advantage, compared to your colleagues who are struggling their way through using echo or print_r statements. The ability to pause the execution is often crucial to understand how the code works and where the bug is.
Check that XDebug is properly installed - you can do that using php -i and search the output for debug.
First install xdebug.php-debug for VS Code released by XDebug plugin for VS Code.
If many of you struggle with it, I can make a video where I show how I install it.