Can you download the whiteboard into Microsoft Word or as an image in Zoom?
If you click on the little arrow next to the Save icon on the toolbar, it will let you select to save it as a PDF or a PNG file.
If you click on the Save icon itself, you will have the option to Show in Folder, so you can see where you files are being saved.
You cannot directly save it as a Word file.
Copying and pasting does not preserve the formatting.