Can I use my Google Drive link as a portfolio when sending a buyer request ? Please give your corrective opinion if use this process otherwise no need.
Welcome to the Fiverr forums.
Google Docs are considered suspicious in general, as many scammers tend to use them. It’s best to stick to the approved urls in this list (found in last section): https://www.fiverr.com/support/articles/360011421198-Seller-FAQs
(Also, never use shortened links.)