Load a block based on deployment mode (development, default, production) Magento 2

block.php

<?php namespace TimNeutkens\Example\Block;

use Magento\Framework\App\State;
use Magento\Framework\View\Element\Template;
use Magento\Framework\View\Element\Template\Context;

class ExampleBlock extends Template {
    protected $developerMode;
    public function __construct(Context $context, array $data = []) {
        /** @var State $state */
        $state = $context->getAppState();
        
        // Check if current mode is developer mode
        $this->developerMode = $state->getMode() === $state::MODE_DEVELOPER;

        // Create the template block
        parent::__construct($context, $data);
    }

    public function _toHtml() {
        // Don't render block when in developer mode
        return !$this->developerMode ? parent::_toHtml() : '';
    }
}