I agree with you as a tech, but pushing back on Google Tag Manager outside of the tech team can be a painful exercise. Everyone in sales and marketing wants it,

I agree with you as a tech, but pushing back on Google Tag Manager outside of the tech team can be a painful exercise. Everyone in sales and marketing wants it, everyone in management wants it, heck I've seen a company where the legal team argued GTM was legally required on every page (so they could use it to manage a popup).