Add NOTE to https://access.redhat.com/documentation/en-us/red_hat_openshift_serverless/1.29/html-single/installing_serverless/index after the following sentence:

The maximum number of Knative services that can be created using this configuration is 3,000. This corresponds to the OpenShift Container Platform Kubernetes services limit of 10,000, since 1 Knative service creates 3 Kubernetes services.

New note
NOTE: Depending on your environment, the default resource CPU/memory limits may hit the limits. Please adjust these resource limits by following
https://docs.openshift.com/serverless/1.28/knative-serving/config-applications/overriding-config-serving.html