It works! The solution is:
- Open the image in Google Drive, click “share” and set general access to “anyone with the link”
- Copy the link to the clipboard
- Extract the file ID:
https://drive.google.com/file/d/1eU7GZ-Ir6QBDrR4UqFI32AqLjXrFNvLW/view?usp=sharing
Becomes:
1eU7GZ-Ir6QBDrR4UqFI32AqLjXrFNvLW - Finally, insert the file ID in this link:
https://lh3.googleusercontent.com/d/<file ID>
So in the example above:
https://lh3.googleusercontent.com/d/1eU7GZ-Ir6QBDrR4UqFI32AqLjXrFNvLW
You can then paste that into your post.