If your goal was to remove the "Trial" version limits found in the official Play Store app:
You can download the OptiFine 1.16.5 JAR and install it directly via the launcher's "Install .jar" feature to significantly boost FPS. 4. Technical Specifications for 1.16.5 descargar minecraft 1.16.5 java para android quitar
Este método es más complejo pero útil si quieres las limitaciones de PojavLauncher. If your goal was to remove the "Trial"