I see you have the option in drive to make it shareable to anyone with the link, which is great. We currently used the same feature in our organizations google drive to make publicly accessible files visible on our website with the help of embedded iframes. I realize iframe is not the most secure implementation, but if there was some way we could at least brand the page with our organizations branding and remove the popups to try proton on the share link page, that would be a good start.