From 6f18b2339d8df9bc835a51e04dca93f156e56297 Mon Sep 17 00:00:00 2001
From: RachelElysia <71795832+RachelElysia@users.noreply.github.com>
Date: Tue, 18 Nov 2025 09:27:43 -0500
Subject: [PATCH] Fleet UI: Nuances between platform and last opened time
 (#35857)

---
 frontend/interfaces/platform.ts               |  3 ++
 .../Software/HostSoftwareTableConfig.tsx      | 31 +++++++++++++------
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/frontend/interfaces/platform.ts b/frontend/interfaces/platform.ts
index f69109a33f..84ce2958ef 100644
--- a/frontend/interfaces/platform.ts
+++ b/frontend/interfaces/platform.ts
@@ -146,6 +146,9 @@ export const isAppleDevice = (platform = "") => {
   );
 };
 
+export const isWindows = (platform: string | HostPlatform) =>
+  platform === "windows";
+
 export const isMacOS = (platform: string | HostPlatform) =>
   platform === "darwin";
 
diff --git a/frontend/pages/hosts/details/cards/Software/HostSoftwareTableConfig.tsx b/frontend/pages/hosts/details/cards/Software/HostSoftwareTableConfig.tsx
index fc80a0f445..4443a877e7 100644
--- a/frontend/pages/hosts/details/cards/Software/HostSoftwareTableConfig.tsx
+++ b/frontend/pages/hosts/details/cards/Software/HostSoftwareTableConfig.tsx
@@ -7,7 +7,13 @@ import {
   IHostSoftware,
   isIpadOrIphoneSoftwareSource,
 } from "interfaces/software";
-import { HostPlatform, isLinuxLike } from "interfaces/platform";
+import {
+  HostPlatform,
+  isIPadOrIPhone,
+  isLinuxLike,
+  isMacOS,
+  isWindows,
+} from "interfaces/platform";
 import { IHeaderProps, IStringCellProps } from "interfaces/datatable_config";
 
 import PATHS from "router/paths";
@@ -125,15 +131,20 @@ export const generateSoftwareTableHeaders = ({
     },
     {
       Header: (): JSX.Element => {
-        const lastOpenedHeader = isLinuxLike(platform) ? (
-          <TooltipWrapper
-            tipContent={
-              <>
-                The last time the package was opened by the end user <br />
-                or accessed by any process on the host.
-              </>
-            }
-          >
+        let tooltipContent = <></>;
+
+        if (isMacOS(platform)) {
+          tooltipContent = (
+            <>When the version installed most recently was last opened.</>
+          );
+        } else if (isLinuxLike(platform) || isWindows(platform)) {
+          tooltipContent = <>When any version was last opened.</>;
+        } else if (isIPadOrIPhone(platform)) {
+          tooltipContent = <>Date and time of last opened.</>;
+        }
+
+        const lastOpenedHeader = tooltipContent ? (
+          <TooltipWrapper tipContent={tooltipContent}>
             Last opened
           </TooltipWrapper>
         ) : (