How do I read the MS edge & chrome browser tab captions?

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C#

.NET

Visual-Studio

web

browser

, +

In C# how can I read the caption in each browser tab, without changing the active tab focus? A short code sample would help greatly.

Background
I work for a health care organization, and I maintain a small application that reads the title bars of several custom applications to create a list of which patients are open on the device. Then I display alerts, warnings or other helpful information.

One of the apps I scan is moving to a web browser (both Edge & Chrome are supported) and now I'll need to read through all of the browser tabs to find what I need.

What I have tried:

I already tried .Net UIAutomation but that is out of the question because it requires changing focus by first activating each of the tabs. Manipulation of the desktop UI would be a disruption.

GetProcesses() only sees the tabs if the browser window is not minimized.