You can see the issue

 I've written this post directly in Blogger rather than Open Live Writer to ensure you see the images.

If our blog is viewed using Google Chrome the images are visible

If I use the Brave browser

 

And if I use the Opera browser

I don't have an Apple Mac and I therefore can't tell you if the images appear in Safari.

The problem obviously isn't with Open Live Writer as the images are visible in Blogger and Chrome.  I can only assume Google has done something which prevents competitors internet browsers from displaying images stored by Google.