Xdebug or Zend for PhpStorm

hello,

i am a new LAMP developer and use PhpStorm for it.

What is the difference between xdebug and zend debug and which one should you use as a LAMP developer.

I found out that I have to enable the debugger in the php.ini file and start in phpstorm via settings (bookmark), is that correct.

My LAMP stack is running with docker-compose, so PHP has his own container.

thx for the help