You can use a 3rd party app like a beeper. It has connections for apps like WhatsApp, telegram, Google Messages, slack, etc. As for the blur tool. At least smartphones based on colorOS like RealmeUI have it in the built-in gallery app.
huh I got a new layout today but it has AI features in the search? I don't like it. I switched to signal and forced everyone but a stubborn few to follow.