diff --git a/internal/cmd/operator-sdk/generate/internal/genutil.go b/internal/cmd/operator-sdk/generate/internal/genutil.go
index 887a613417..3b64c5a432 100644
--- a/internal/cmd/operator-sdk/generate/internal/genutil.go
+++ b/internal/cmd/operator-sdk/generate/internal/genutil.go
@@ -28,7 +28,6 @@ import (
 	apiextv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 	apiextv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
 	"sigs.k8s.io/controller-runtime/pkg/client"
-	cfgv3 "sigs.k8s.io/kubebuilder/v4/pkg/config/v3"
 	"sigs.k8s.io/yaml"
 )
 
@@ -182,18 +181,9 @@ func GetPackageNameAndLayout(defaultPackageName string) (packageName string, lay
 			return "", "", err
 		}
 		if packageName == "" {
-			switch {
-			case cfg.GetVersion().Compare(cfgv3.Version) == 0:
-				wd, err := os.Getwd()
-				if err != nil {
-					return "", "", err
-				}
-				packageName = strings.ToLower(filepath.Base(wd))
-			default:
-				packageName = cfg.GetProjectName()
-				if packageName == "" {
-					return "", "", errors.New("--package <name> must be set if \"projectName\" is not set in the PROJECT config file")
-				}
+			packageName = cfg.GetProjectName()
+			if packageName == "" {
+				return "", "", errors.New("--package <name> must be set if \"projectName\" is not set in the PROJECT config file")
 			}
 		}
 		layout = projutil.GetProjectLayout(cfg)
diff --git a/internal/cmd/operator-sdk/generate/kustomize/manifests.go b/internal/cmd/operator-sdk/generate/kustomize/manifests.go
index 7fa4eaceed..0c45dc08ca 100644
--- a/internal/cmd/operator-sdk/generate/kustomize/manifests.go
+++ b/internal/cmd/operator-sdk/generate/kustomize/manifests.go
@@ -30,7 +30,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/validation"
 	"sigs.k8s.io/kubebuilder/v4/pkg/config"
-	cfgv3 "sigs.k8s.io/kubebuilder/v4/pkg/config/v3"
 	"sigs.k8s.io/kubebuilder/v4/pkg/machinery"
 	"sigs.k8s.io/yaml"
 
@@ -257,11 +256,6 @@ func getGVKs(cfg config.Config) ([]schema.GroupVersionKind, error) {
 	}
 	gvks := make([]schema.GroupVersionKind, len(resources))
 	for i, gvk := range resources {
-		// check if the resource has an specific domain
-		// otherwise use the config.Domain.
-		if cfg.GetVersion().Compare(cfgv3.Version) == 0 {
-			gvk.Domain = cfg.GetDomain()
-		}
 		gvks[i].Group = gvk.QualifiedGroup()
 		gvks[i].Version = gvk.Version
 		gvks[i].Kind = gvk.Kind