Hi there, @accounting-petty.
Thanks for reaching out to the Community. I'm here to share some insight about using a VPN when accessing your QuickBooks Online (QBO) account.
As Fiat Lux-ASIA stated above, you are not required to use a VPN when accessing QBO. As long as your internet connection is strong and your browser meets the system requirements, you should be able to access QuickBooks with no issues.
However, if you need to connect a VPN in the browser so the QuickBooks page will load, I suggest reaching out to an IT professional for further assistance. They can look into the setup of your browser or system in a secure environment and help you with signing in to QBO using a VPN while traveling.
Furthermore, I'm attaching this link that can efficiently guide you in supervising your QBO account: Learn about QuickBooks Online with how-to videos.
If you have any other follow-up questions while handling your QuickBooks account, let me know by adding a comment below. I'm more than happy to help. Keep safe!