I built https://rockyai.me/ (chrome extension to chat with any webpage) for my personal use tbh but ended up putting it on the store for others to use as well. One of my friends sent it to his data who is retired and consumes a lot of news articles online. I see his dad using the extension a few times every few hours now to summarize things / get more background on stories.
The extension reports some minimal metrics around where the extension was used (just the hostname of the url) and by which user. Other than that the content of the webpage is proxied to OpenAI's apis.
I have plans to in future 1) make the metrics tracking optional and 2) let folks use their own OpenAI API key if they want.