WhatsApp for Samsung Galaxy Folder

Yes. The Galaxy Folder 2 runs full Android, so you can install the standard WhatsApp app rather than a feature-phone version. Open the Play Store, search for WhatsApp and install it. If the Store lists it as incompatible, download the official APK from whatsapp.com/android, then allow installation from your browser or file app under Settings > Apps > Special access > Install unknown apps. Keep WhatsApp updated, because older builds eventually stop connecting once WhatsApp drops support for the phone's Android version. See how others solved this on Reddit

Most lightweight Android apps install and run, but the small ~3.8-inch screen and modest hardware mean some apps render awkwardly or feel sluggish, and newer apps may refuse to install because they require a higher Android version than the Folder shipped with. Before installing, check an app's minimum Android requirement on its Play Store listing, and favor 'Lite' or basic apps (WhatsApp, a simple browser, maps). For apps the Store blocks, an older compatible APK from a trusted source like APKMirror often installs. See how others solved this on Reddit

Delayed or missing messages on the Folder are usually caused by battery optimization (Doze) cutting background data while the phone sits closed and idle. Go to Settings > Apps > WhatsApp (or Messages) > Battery and set it to Unrestricted. Also confirm notifications and background data are enabled for the app. If texts specifically aren't arriving, check that the SIM is registered for messaging and try toggling airplane mode or re-inserting the SIM, since the Folder 2 has known network/SMS quirks reported by users. See how others solved this on Reddit

Secure Folder runs its own copies of apps and routes their notifications through a separate channel, so silencing the normal app doesn't affect them. Open Settings > Security and privacy > Secure Folder > Notifications and turn off Show notifications (or hide the content). The simplest fix is to keep Secure Folder locked: lock it from the Quick Settings tile or its app icon so its apps stop pushing notifications until you re-authenticate. See how others solved this on Reddit

Even with Secure Folder locked, message previews can leak if the lock screen is set to show notification content. Go to Settings > Notifications > Lock screen notifications and set it to Hide content. Then in Settings > Security and privacy > Secure Folder > Notifications, turn off Show notifications so Secure Folder apps reveal nothing while locked. Setting Secure Folder to auto-lock (Secure Folder settings > Auto lock Secure Folder > Each time I leave) ensures it relocks the moment you exit. See how others solved this on Reddit

WhatsApp installed in Secure Folder is a separate instance with its own notification and battery permissions. Inside Secure Folder, open that WhatsApp > Settings > Notifications and enable call notifications. Then set its battery usage to Unrestricted via Secure Folder's app settings. Note that a locked Secure Folder can suppress incoming call alerts entirely, so if reliable WhatsApp calls matter, run WhatsApp in your main profile instead of Secure Folder. See how others solved this on Reddit