Okay, so, stupid question; could you replace this with this screen recorder[1] and browsers' built-in web dev tools[2] ? The screen recorder lets you record and download a session (nothing is uploaded), and the dev tools lets you capture any errors the browser sees, the network connections & errors, the source, browser data/steps, yadda yadda.
The built-in web dev tools have a Recorder function to record what the browser is doing while also recording video[3]. You can export the recording in a number of formats. It can replay it, let you edit steps, even simulate a slow network. Seems like a product person could follow a simple guide to record and export a session, and send it to a dev?
[1] https://toolbox.googleapps.com/apps/screen_recorder/ [2] https://developer.chrome.com/docs/devtools/ [3] https://developer.chrome.com/docs/devtools/recorder