G Suite users are often confused. What is the maximum size of attachments that you can currently send through Gmail? As you already know, attachments in gmail can only be sent up to 25MB. However, it can be confusing if the size of the file you can send to a URL link via Google Drive is 10GB, 1TB, or 5TB.
In Gmail, the maximum size of a file you can send as an attachment is 25 MB. However, if you want to send files over 25MB in size, you can use Google Drive to save the file and send the file as a URL link. At this time, the maximum size of one file that can be sent as URL link can be up to 5TB. (In the past, 10GB, 1TB, now up to 5TB) In other words, the maximum size of a file that can be stored in Google Drive is 5TB.
The maximum file size limitation of G Suite Basic, G Suite Business (Unlimited) and G Suite for Education are the same.
For more information - https://support.google.com/drive/answer/37603?hl=en