I don’t know if there’s some way to override/customise the notification sounds on Android on per-app basis. At one point in history I wanted Twitter to go [random bird noises] and Reddit to go “Le.” but since I don’t use either of them anymore I really didn’t investigate this further.
There’s a movie plot hook buried there. About a kid on spectrum whose robot buddy gets killed by the uncaring business. They go “oh no, I’ll have to fix my robot buddy” and go on to become a tech genius. One day, they become a tech millionaire, and the story’s antagonist, the shady businesses partner, goes “look, we’re bankrupt, we have no choice, we have to shut down all of the robot buddies”. And the protagonist remembers the saddest moment of their childhood and are like “no, we can’t do that”.