Context: This is a unique Vercel deployed URL for a specific commit, versus the main .io "alias" which acts like a pointer to the newest commit to your main git branch. If an updated was pushed to main for example, the current URL would be a fixed point in time snapshot of the site, versus the main .io "alias" which would reflect the new changes (and those changes would have their _own_ unique URL).
Context: This is a unique Vercel deployed URL for a specific commit, versus the main .io "alias" which acts like a pointer to the newest commit to your main git branch. If an updated was pushed to main for example, the current URL would be a fixed point in time snapshot of the site, versus the main .io "alias" which would reflect the new changes (and those changes would have their _own_ unique URL).