You can give others access to your Drive files using their email or a public link.
While Google Drive doesn't have a direct "Post to Instagram/Reddit" button, you can use these workarounds: 32 - Google Drive
: You can upload individual files as large as 5 TB, provided you have the storage space. You can give others access to your Drive
: Download the file to your computer first, then upload it directly to the social media site. Managing Your Posts/Uploads 32 - Google Drive
To help you post or share content from Google Drive, here are the most effective ways to do it. Share Files Directly
: Click Share , change the General Access to "Anyone with the link" , then copy and paste the link where you want to post it.