How do I open a webpage in Google Docs?

I would like to open a page (with its images) from a URL and edit a copy in Google Docs. The URL does not require authentication. How do I do this?

• Saving it creates an HTML file plus a folder, which cannot be uploaded as such to Google Docs
• Saving it as mhtml bundles all files, bu this cannot be read by Google Docs. I tried some online mhtml converters but they loose the images.
• LibreOffice cannot directly open a URL. It can open the HTML from the disk, with the images, but this cannot be saved as ODT, DOCX, or some other format that could be read into Google Docs, just as HTML.
• Copy-Paste of the whole file to Google Docs or LibreOffice loses the imagtes