Screenshot capture can be disabled across an entire organization, or for specific users only. Please follow the steps below to disable screenshots from the Settings menu.
Click on Settings & Policies from the main navigation bar, then select Features from the drop-down menu.
Choose the Activity (1) tab, then select the Screenshot frequency (2) setting.
Choose None from the Default settings to disable screenshots for all members, or select the None option for individual members on the Individual settings section.