PHPStorm is taking a lot of storage space

Mac OS X is telling me that PHPStorm is using over 5GB size as application. See attached screenshot. At the same time Webstorm is using only ~500MB.

I tried invalidating cache: https://www.jetbrains.com/help/phpstorm/cleaning-system-cache.html

I also checked the size of settings, cache, logs folder here: https://intellij-support.jetbrains.com/hc/en-us/articles/206544519-Directories-used-by-the-IDE-to-store-settings-caches-plugins-and-logs

But it is only a couple of hundred megabytes. I am running older version of PHPStorm, so I checked the WebIde folders.

When checking directly application size of PhpStorm.app, it says it is 1,7GB. So either Mac OS X doesn't know how to calculate size or where is that 3,7GB of used space by PHPStorm?

Any help would be appriciated.