How can I track cart abandonment in Google Analytics 4?

Running a Shopify store, I've been obsessed with understanding why customers add products to their cart but never complete the purchase. Every abandoned cart feels like money slipping through my fingers. I'm spending significant ad budget driving traffic, but seeing high cart abandonment rates is killing my conversion rate and return on ad spend. I've tried manually tracking these instances, but it's time-consuming and lacks the granular insights I need. Google Analytics 4 seems promising, but the setup isn't as straightforward as I hoped. I need a systematic way to track these drop-offs, understand the exact points of friction, and develop targeted strategies to recover these potentially lost sales. My goal isn't just to track abandonment, but to transform those insights into actionable conversion optimization tactics. Without a clear view of my cart abandonment funnel, I'm essentially operating in the dark, making guesses instead of data-driven decisions that could significantly improve my store's performance.