Google tag manager is sometimes (often?) used to load every other third-party script, so if you allow gtm to load you'll probably see a bunch more scripts. As

Google tag manager is sometimes (often?) used to load every other third-party script, so if you allow gtm to load you'll probably see a bunch more scripts. As a web developer, gtm was the bane of my existence because marketing could change and break the site significantly, while decreasing user privacy and page speed, and the devs could take the blame.