From the reply you're replying to:
reply> 27. Microsoft records also indicate: <...> a little more than three hours after the ngrok account was created, the user visited “[Company F].com” from the .168 proxy server.
This tells us nothing about whether non-Microsoft browsers are involved
replyScary huh? What else aren't they telling us..
replyOr even Edge with these options turned off:
reply>Send optional diagnostic data to improve Microsoft products [Includes how you use the browser, websites you visit, and enhanced error reporting. Determined by your Windows diagnostic data setting]
>Allow Microsoft to save your browsing activity including history, usage, favourites, web content, and other browsing data to personalise and improve Microsoft Edge and Microsoft services like ads, search, shopping, news, and Copilot [Includes your history, usage, favourites, web content and other browsing data]