Magento 2 Google Tag Manager (GTM) extension provides an easy way to add tracking and analytics tools to your online store. This extension allows you to manage tags without any coding. This lets you easily integrate Google Analytics, AdWords, and other third-party tools into your Magento 2 store. It helps improve website performance and track user behavior.
Check out more details at: https://webkul.com/blog/magento2-google-tag-manager/