Hi there,
The Global Site Tag is the name of the Google Analytics tag — it’s not possible to disable because its the actual analytics code.
That being said, it wouldn’t be causing the issue you are describing, as it’s unable (and our plugin is also unable) to change the titles or meta descriptions on your site.
Changing titles/meta descriptions can only be done by an SEO plugin. The SEO plugin that’s installed onto a site to add those is also the only thing that can adjust them.
It looks like you are using All in One SEO on your site. I would recommend reaching out to their team and they can help you with that.
I can actually see the exact issue, there’s two metas for description.
It looks like one of them is being added by All In One SEO, and the second one might be coming from Yoast SEO (I think, but its output is unlabeled)
The All in One Support team should be able to help you figure out where that second set is coming from and how to remove it