These days, knowing some people, I'm already grateful if a person is just using the default notification sound. Two highlights:
Camera flash light.alongside the notification, so you get a free flashbang whenever you're sitting across from that person. I've yet to figure out how that mode is even helpful in any way and not just an annoyance for other people.
Long music clips not as a ringtone, but as a notification on full blast. Essentially, that person has trained themself to drop everything when a notification comes in in order to shut down the music. I'm not an expert, but that feels like the opposite of healthy phone usage.
Killing status LEDs, then realising that there are people who needed it, and making them use the camera flash on the back of the phone instead isn't great either.
I miss my LG phone that let me customize the LED color based on app. That way if it were one color I knew it was semi-important, but other colors I knew were...dismissible.
The camera flash notification thing is useful for people that are deaf or hard of hearing if they don't have the phone actually on their person when the notification goes off
I turn silent off when the home wifi connects. I don't keep my phone on my pocket at home, but i also don't allow notifications on most apps, and no noise or vibration on any notification.