: Click Share , change the General Access to "Anyone with the link" , then copy and paste the link where you want to post it.
: Download the file to your computer first, then upload it directly to the social media site. Managing Your Posts/Uploads 32 - Google Drive
: Some platforms allow you to paste a direct download link. You can use tools to convert a standard Drive share link into a direct file URL for better compatibility. : Click Share , change the General Access
: If you try to email a file over 25MB via Gmail, it will automatically "post" it as a Drive link instead of an attachment. : Click Share