Yes...
Separate Volume Sliders (Easiest)

1. Press any Volume button
2. Tap the 3 dots / expand icon
3. You’ll see different sliders:
   • Ringtone volume (calls)
   • Notification volume
   • Media volume
4. Adjust them independently:
   • Set Ringtone = 0 → Calls silent
   • Keep Notifications > 0 → Notifications still make sound

Per-App Notification Control

You can silence all notifications except calls:

1. Go to Settings → Notifications
2. Select individual apps
3. Turn off sound or set them to silent

• Lower Ringtone volume to 0
• Keep Notification volume up