Why cant I see when a Quote has been viewed like an Invoice?

I can see that this option would be a great suggestion for a product feature, Scott.

The option to know if a customer opened or viewed an estimate isn't yet available. For now, I recommend submitting your feedback directly to our development team. They actively evaluate user suggestions and frequently incorporate enhancements in future software updates. 

1. Go to the Gear icon and select Feedback.
2. Provide your product suggestion.
3. Click on Next to submit feedback.

Moreover, you can check the status of your request, you can click this link: Customer Feedback for QuickBooks Online

Additionally, you can check out this guide to help manage your quotes for future help: Create and send quotes in QuickBooks Online

If you have further questions about your quote, you can comment below, and we'll respond to you as soon as possible.