Multiple 408 errors are often caused by your app sending health checks with very short timeouts to App Platform. They typically don’t affect the functionality of the app.
App Platform builds have a fixed amount of memory available, so try optimizing your builds to stay within the 8 GB limit. You can increase the amount of memory in App Platform deployments by upgrading to a different plan.
App Platform does not support 301 or 302 responses to direct traffic from one domain to another, but you can create a free blank app with a custom domain that redirects the app’s traffic to another app’s domain.