Thanks to Phiter's comment, I managed to find a fix.
Essentially, XDebug can be configured with various options placed inside the file php.ini. Among these options are those which specify the depth of an object to display on the GUI.
However, when debugging through Visual Code's PHP Debug (felixbecker.php-debug) extension, these settings must be configured elsewhere. The full instructions are listed on this page: https://github.com/felixfbecker/vscode-php-debug#supported-launchjson-settings
The gist of it is to open the Debug panel on the left bar -> click on the cogwheel icon to open the launch.json file which houses the debugger's settings, and -> add the following code snippet:
{
"name": "Listen for XDebug",
"type": "php",
"request": "launch",
"port": 9000,
"xdebugSettings": {
"max_children": 999,
}
},
That's it.
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