Samsung
Set Up Focus Mode auf Samsung
Focus mode sits inside Samsung's Digital Wellbeing tools and works by temporarily locking every app on the phone except the ones you explicitly allow. Notifications, badges and app icons for blocked apps go quiet until you end the session or the timer runs out.
Samsung ships two ready-made modes, usually labeled Work and Me time, but you are not limited to those. You can rename either one, delete it, or create a completely new mode with its own name, app list and duration.
To set it up, go to Settings ➔ Digital Wellbeing and parental controls ➔ Work/Me time or tap Add to build a new mode. Enter a Name and tap Save, then tap Edit to choose which apps stay usable. Select one or more Apps and tap Done, then set the Duration and tap Start.
Once active, only the apps you picked as exceptions will open normally; everything else gets its icon grayed out and its alerts held back. This is different from Do Not Disturb, which mutes sounds but still lets any app run in the foreground.
Use Focus mode when specific apps are the distraction, not all notifications. If the goal is just silence during a meeting or at night, a scheduled Do Not Disturb rule is the simpler fix.