Google Tag Manager + Tags Setup

I have a fresh Google Tag Manager container waiting to be populated so I can finally see one coherent stream of data instead of juggling different dashboards. The objective is straightforward: gather detailed analytics data across my entire marketing stack.

Here is what I need done:
• Configure GTM from scratch (or review the current blank container if that is easier).
• Add and properly fire the following tags: Intercom, Google Analytics (GA4), Google Ads, Facebook Ads, LinkedIn Insight, PostHog, and Mixpanel.
• Make sure page views, button clicks, and form submissions are sent to Google Analytics as clean events I can build reports on.
• A few of the platforms are already set up; others will require your help creating or finishing the accounts and pulling the correct IDs or pixels—that bit of groundwork is part of the job.
• Provide brief hand-off notes or a loom walkthrough so I know where each tag lives and how to add future ones myself.

If you’ve done multi-platform GTM installs before and can knock this out quickly (without breaking existing site functionality), I’d love to get started right away.