Using HDR10 as HDR format.

Packages/com.verasl.water-system/Scripts/Rendering/PlanerReflections.cs

             {
                 if (m_ReflectionTexture)
                     DestroyImmediate(m_ReflectionTexture);
+
+                bool useHDR10 = Application.isMobilePlatform &&
+                SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGB2101010);
+                RenderTextureFormat hdrFormat = (useHDR10) ? RenderTextureFormat.ARGB2101010 : RenderTextureFormat.DefaultHDR;
+            
-                    currentCamera.allowHDR ? RenderTextureFormat.DefaultHDR : RenderTextureFormat.Default);
+                    currentCamera.allowHDR ? hdrFormat : RenderTextureFormat.Default);
                 m_ReflectionTexture.useMipMap = m_ReflectionTexture.autoGenerateMips = false;
                 m_ReflectionTexture.autoGenerateMips = false; // no need for mips(unless wanting cheap roughness)
                 m_ReflectionTexture.name = "_PlanarReflection" + GetInstanceID();