K8S Vs K3S and Sizing recommendations

We are in the process of evaluating K8S/K3S for multi-tenanted large scale product. In this regard, can anyone in the group give me some pointers on below:

  • Deep dive arch and capabilities differences between K8S & K3S, which one to prefer when.
  • Any defined set of criteria typically in place for evaluating either K8S and/or K3S across functional & non functional capabilities of K8S
  • Does K8S or K3s has any benchmarks published in terms of scaling, performance, HA and resources for multi-cluster node deployments.