Your notifications aren’t automatically silenced when presenting your screen?
The website is hilarious too https://muzzleapp.com
when I am on support, if you ping me with only "hi" or "hello" or some other simple greeting, I will simply not respond to you until you give me something actionable for me to look at. if you don't say your problem and provide some info about what you need, then I have neither the time nor the desire to pull it out of you. tell me what you need or I will not respond.