I don't notice any difference but maybe you guys can. Is this setting really applied ? Does Samsung m30 even support high refresh rate like shown here? Please lemme know if you guys feel any difference 😊 You can download Activity launcher in play store and apply this setting in Settings > High Refresh Rate
High Refresh Is Hardware Dependent feature. No Samsung Phone Launched Till Date Has High Refresh Rate. Applying This Setting Will Not Make Any Difference. This Is Just Included In The Build As the Upcoming S20 Series Will Sport A 120HZ Panel.