Firefox for Android uses phone layout on iQOO/Vivo Tablet – Nightly works correctly

Hello Firefox Support Team, I am experiencing a UI/layout issue with Firefox for Android on my tablet. Device information: Device: iQOO Pad 5 Pro Operating system: OriginOS 6 HD Android version: Android 16 Firefox version: 153.0.3 Build: 2016176519 The problem is that the regular Firefox version does not use the proper tablet layout on my device. Instead, Firefox appears to use the smartphone/phone layout, even when the tablet is used in landscape orientation. The interface does not make proper use of the large tablet display and looks like the phone version stretched or displayed on a tablet. The device itself is configured with a smallest width of 820 dp, so Android should clearly recognize it as a large-screen/tablet device. Interestingly, Firefox Nightly 155.0a1 works correctly on exactly the same device. Nightly displays the proper tablet-optimized interface and makes appropriate use of the full screen. Therefore, this appears to be a difference between the current stable Firefox release and Firefox Nightly rather than an OriginOS limitation. Could you please check whether the tablet UI improvements/fix present in Firefox Nightly 155.0a1 are expected to be included in a future stable Firefox release, or whether there is a way to enable the same tablet layout in Firefox 153.0.3? I can also provide screenshots showing the difference between Firefox Stable and Firefox Nightly on the same device if needed. Thank you for your help.