This fix seems to have stopped working for me in Chrome 96.0.xxxx on a middle-aged MacBook. There are at least two threads I know of where images that are visible in Safari are blocked in this version of Chrome. Any tips?
Added:
It turns out it was the Ghostery extension I recently installed that was blocking insecure images. I'm not sure why, but when I added TRW to the list of trusted sites, the issue resolved.