[Samsung Galaxy Z Fold 2 Themes, Apps, and Mods] tribalfs:
About this app:

Refresh Rate Control: Easily control the max refresh rate (Hz) of android devices with multiple refresh rates (e.g. note20 ultra, s20/S20+/S20Ultra, z fold 2, s21/s21+/s21Ultra, tab S7/S7+, z fold 3, z flip 3). This app can limit max refresh rate to 96hz (or any available refresh rate) on supported smartphones - you can save power with negligible difference on smoothness. Use either the in-app toggle or quick settings tile - ADB setup or Root NOT needed.

Force High: Option to use High(Fixed) motion smoothness mode on Samsung devices with native Adaptive motion smoothness***

Current Samsung smartphones natively supporting adaptive refresh rates:

Galaxy Note 20 Ultra

Galaxy Z Fold 2

Galaxy S21, S21+, S21 Ultra

Galaxy Z Flip 3

Galaxy Z Fold 3

Refresh Rate Monitor: Show real-time screen refresh rate as statusbar icon and/or as overlay. Overlay size and location is adjustable. Use either the in-app toggle or quick settings tile

Quick Resolution Switcher: Easily switch to any supported resolutions using the included quick setting tile***

Quick High/Adaptive on Power Saving Mode: Easily switch to high or adaptive motion smoothness mode (from Standard) even on power saving mode on supported Samsung smartphones.***

Note: Not working (blocked by samsung) on some devices with OneUI4.0

Force to Lowest Hz: Force lowest refresh rate on screen-off/AOD. This overrides Samsung's strange stock behavior which sets the refresh rate to the highest on screen off (update: it is now at 60hz since oneui3.0) - to improve standby power consumption a bit - ADB setup or Root NOT needed.

Auto apply power saving mode during screen-off (after ~ 10 secs)***

Tasker plugin support: Automate GMH settings with Tasker app. Supported actions/variables: max refresh rate, min refresh rate, keep smooth motion on PSM, motion smoothness mode, quick-doze mod, change dispaly resolution, auto sensors off. More info in FAQs below

Premium Features:

Keep High/Adaptive motion smoothness when power saving mode is enabled whether manually or by the system/adaptive power saving***

Note: Not working (blocked by samsung) on some devices with OneUI4.0

Adaptive refresh rate mod for devices supporting multiple refresh rates but do not have the stock Adaptive motion smoothness (e.g. S20 series, S20FE, TabS7/S7+,S21FE) with the ability to set the brightness threshold for its activation***

Quick-doze mod: Quickly enter doze mode during screen-off that can not be interrupted by motion ***

Set minimum refresh rate for adaptive mode to 60hz or lower (if supported)***

Resolution switcher filter: Filter what screen resolutions to include for the resolution switcher QS tile.

Auto SENSORS OFF (experimental non-root workaround):

Device sensors will automatically turn off while screen is off until the device is unlocked. This helps minimize battery-draining motion-triggered wakelocks while device is not being used.

Statusbar net speed indicator

7-day Premium Trial is available. Just click "Activate Premium|Trial" button and activate free trial when prompted.

Note: The premium license is on a per device basis.

***these marked features require a one-time ADB setup (this is not root)

Info: This app targets older android sdk in order to control refresh rates without ADB setup. Just ignore the dialog that says "This app was built for an older version of Android...." when opened for the first time.

Important Notes for OneUI5.1.1 and higher :

You also need to "Allow restricted settings" to the app:

Open Settings > Apps > Galaxy MaxHz > Click top right menu and Allow restricted settings

Download

Read FAQs and more info in here