diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ed0f68f..b0031dfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 - Minor: Added quotation marks in the permitted/blocked Automod messages for clarity. (#3654)
 - Minor: Adjust large stream thumbnail to 16:9 (#3655)
 - Minor: Fixed being unable to load Twitch Usercards from the `/mentions` tab. (#3623)
+- Minor: Add information about the user's operating system in the About page. (#3663)
 - Bugfix: Fixed live notifications for usernames containing uppercase characters. (#3646)
 - Dev: Use Game Name returned by Get Streams instead of querying it from the Get Games API. (#3662)
 
diff --git a/src/widgets/settingspages/AboutPage.cpp b/src/widgets/settingspages/AboutPage.cpp
index de653482..78c2c4f8 100644
--- a/src/widgets/settingspages/AboutPage.cpp
+++ b/src/widgets/settingspages/AboutPage.cpp
@@ -85,16 +85,35 @@ AboutPage::AboutPage()
         auto versionInfo = layout.emplace<QGroupBox>("Version");
         {
             auto version = Version::instance();
-            QString text = QString("%1 (commit %2%3)")
-                               .arg(version.fullVersion())
-                               .arg("<a "
-                                    "href=\"https://github.com/Chatterino/"
-                                    "chatterino2/commit/" +
-                                    version.commitHash() + "\">" +
-                                    version.commitHash() + "</a>")
-                               .arg(Modes::instance().isNightly
-                                        ? ", built on " + version.dateOfBuild()
-                                        : "");
+            QString osInfo = QSysInfo::prettyProductName() +
+                             ", kernel: " + QSysInfo::kernelVersion();
+            if (version.isFlatpak())
+            {
+                osInfo += ", running from Flatpak";
+            }
+
+            QString commitHashLink =
+                QString("<a "
+                        "href=\"https://github.com/Chatterino/chatterino2/"
+                        "commit/%1\">%1</a>")
+                    .arg(version.commitHash());
+
+            QString nightlyBuildInfo;
+            if (Modes::instance().isNightly)
+            {
+                nightlyBuildInfo =
+                    QString(", built on %1").arg(version.dateOfBuild());
+            }
+
+            QString supportedOS;
+            if (!version.isSupportedOS())
+            {
+                supportedOS = "(unsupported OS)";
+            }
+
+            QString text = QString("%1 (commit %2%3) running on %4 %5")
+                               .arg(version.fullVersion(), commitHashLink,
+                                    nightlyBuildInfo, osInfo, supportedOS);
 
             auto versionLabel = versionInfo.emplace<QLabel>(text);
             versionLabel->setOpenExternalLinks(true);