Users who don't know about the Developer Tools won't know why a file cannot be downloaded in Chrome. The blocked file types implementation lacks clarity and information. Whether the plugins or extensions will pick up the download is another question though, as a blocked download may not be picked up anymore, but right-clicking, saving the URL and pasting it manually in the download manager should work regardless of the browser's blocking settings. A program like Internet Download Manager, uGet, or Xtreme Download Manager will continue to download files from HTTP sources. For now, a browser like Firefox, Internet Explorer, Brave, Vivaldi, the new Edge, or Opera all allow the download. Most browsers will follow Google's implementation however and block insecure downloads.
The company decided to roll out the feature gradually by adding more and more file types to the blocklist. Google announced in early 2020 that it will block content that is served via the insecure HTTP if the originating page uses HTTPS. The fact that nothing happens can be confusing to users, as the expectation is that the download should begin after clicking on the link. A check of the downloads page of the browser does not even list the file. Chrome does not display a notification and there is virtually no information that explains what is happening, or not happening in this case. You click on the download link and nothing happens. If you have upgraded the Google Chrome browser to version 86, released on October 6, 2020, you may have noticed that some file downloads don't work anymore in the browser.