diff --git a/frontend-modern/src/features/docker/__tests__/dockerPageModel.test.ts b/frontend-modern/src/features/docker/__tests__/dockerPageModel.test.ts
index 9c3137049..6891add03 100644
--- a/frontend-modern/src/features/docker/__tests__/dockerPageModel.test.ts
+++ b/frontend-modern/src/features/docker/__tests__/dockerPageModel.test.ts
@@ -103,7 +103,7 @@ describe('dockerPageModel', () => {
       buildDockerContainerDefaultHiddenColumnIds([
         makeResource({ id: 'ctr-1', type: 'app-container' }),
       ]),
-    ).toEqual(['disk', 'tags', 'netIo', 'diskIo']);
+    ).toEqual(['disk', 'tags', 'backup', 'netIo', 'diskIo']);
   });
 
   it('keeps Docker container I/O columns default-visible once telemetry exists', () => {
@@ -116,7 +116,7 @@ describe('dockerPageModel', () => {
           diskIO: { readRate: 0, writeRate: 0 },
         }),
       ]),
-    ).toEqual(['disk', 'tags']);
+    ).toEqual(['disk', 'tags', 'backup']);
   });
 
   it('decides Docker container network and disk I/O defaults independently', () => {
@@ -128,7 +128,7 @@ describe('dockerPageModel', () => {
           network: { rxBytes: 128, txBytes: 64 },
         }),
       ]),
-    ).toEqual(['disk', 'tags', 'diskIo']);
+    ).toEqual(['disk', 'tags', 'backup', 'diskIo']);
 
     expect(
       buildDockerContainerDefaultHiddenColumnIds([
@@ -138,7 +138,7 @@ describe('dockerPageModel', () => {
           diskIO: { readRate: 128, writeRate: 64 },
         }),
       ]),
-    ).toEqual(['disk', 'tags', 'netIo']);
+    ).toEqual(['disk', 'tags', 'backup', 'netIo']);
   });
 
   it('builds host-identity badges for Docker workload group rows', () => {
diff --git a/frontend-modern/src/features/kubernetes/KubernetesPageSurface.tsx b/frontend-modern/src/features/kubernetes/KubernetesPageSurface.tsx
index 06c530473..e4f8c8948 100644
--- a/frontend-modern/src/features/kubernetes/KubernetesPageSurface.tsx
+++ b/frontend-modern/src/features/kubernetes/KubernetesPageSurface.tsx
@@ -109,6 +109,11 @@ function KubernetesOverview(props: KubernetesOverviewProps) {
     suppressPlatformFilter: true,
     allowEmbeddedScopeFilters: true,
     columnVisibilityStorageScope: KUBERNETES_WORKLOAD_COLUMN_SCOPE,
+    // Backup column is driven exclusively by Proxmox vzdump / PBS data
+    // (`resource.proxmox.lastBackup` in useWorkloads); Kubernetes
+    // workloads have no equivalent source at this integration layer, so
+    // the column would always render blank. Hide by default.
+    additionalDefaultHiddenColumnIds: ['backup'],
     compactGroupHeaders: true,
   });
   const showSharedFilterToolbar = createMemo(
diff --git a/frontend-modern/src/features/platformPage/appContainerColumns.ts b/frontend-modern/src/features/platformPage/appContainerColumns.ts
index 6df63fb74..1880cec12 100644
--- a/frontend-modern/src/features/platformPage/appContainerColumns.ts
+++ b/frontend-modern/src/features/platformPage/appContainerColumns.ts
@@ -1,6 +1,12 @@
 import type { Resource } from '@/types/resource';
 
-export const APP_CONTAINER_BASE_DEFAULT_HIDDEN_COLUMNS = ['disk', 'tags'] as const;
+// Default-hidden columns for app-container workloads. `disk` and `tags` are
+// existing hides; `backup` is added because the workload-table Backup column
+// is driven exclusively by `resource.proxmox.lastBackup`, which Proxmox VE
+// populates from its vzdump scheduler / PBS integration. App containers
+// (Docker, Podman, TrueNAS apps) have no equivalent source — the cell is
+// not just empty, the concept doesn't exist at this integration layer.
+export const APP_CONTAINER_BASE_DEFAULT_HIDDEN_COLUMNS = ['disk', 'tags', 'backup'] as const;
 
 export const APP_CONTAINER_COLUMN_LABEL_OVERRIDES = {
   disk: 'Writable layer',
diff --git a/frontend-modern/src/features/vmware/VmwarePageSurface.tsx b/frontend-modern/src/features/vmware/VmwarePageSurface.tsx
index ea574a34f..b0f15e1c4 100644
--- a/frontend-modern/src/features/vmware/VmwarePageSurface.tsx
+++ b/frontend-modern/src/features/vmware/VmwarePageSurface.tsx
@@ -46,6 +46,14 @@ const VALID_TABS = new Set<VmwarePageTabId>(VMWARE_TAB_SPECS.map((tab) => tab.id
 const VMWARE_PLATFORM_FILTER = 'vmware-vsphere';
 const VMWARE_WORKLOAD_STATUS_STORAGE_SCOPE = 'vmware';
 const VMWARE_WORKLOAD_COLUMN_VISIBILITY_SCOPE = 'vmware-vms';
+// Backup column on the workload table is driven exclusively by Proxmox
+// vzdump / PBS data (`resource.proxmox.lastBackup` in useWorkloads).
+// vCenter has no native backup concept — vSphere backups happen in
+// third-party products (Veeam, Commvault, Rubrik, Cohesity, Dell
+// PowerProtect) or VMware's separately-licensed Live Recovery / SRM,
+// none of which surface through vCenter's inventory API. Hide the
+// column by default rather than render a permanently blank cell.
+const VMWARE_WORKLOAD_DEFAULT_HIDDEN_COLUMN_IDS: readonly string[] = ['backup'];
 const VMWARE_WORKLOAD_STATUS_OPTIONS: readonly WorkloadsStatusOption[] = [
   { value: 'all', label: 'All' },
   { value: 'running', label: 'Powered on' },
@@ -233,6 +241,7 @@ function VmwareOverview(props: VmwareOverviewProps) {
     allowEmbeddedScopeFilters: true,
     statusModeStorageScope: VMWARE_WORKLOAD_STATUS_STORAGE_SCOPE,
     columnVisibilityStorageScope: VMWARE_WORKLOAD_COLUMN_VISIBILITY_SCOPE,
+    additionalDefaultHiddenColumnIds: [...VMWARE_WORKLOAD_DEFAULT_HIDDEN_COLUMN_IDS],
     compactGroupHeaders: true,
     groupNodeDrawerMode: 'disabled',
     metricDisplayMode: props.metricDisplayMode,