text messaging in chat groups. they still beep when a message appears in a group or at least when someone replies to a message i sent or mentions me. i have most groups on silent by default but some groups are important so for those i keep notifications on.

apart from that there are also voice group chats which on some apps start with a ring at least if i am explicitly invited. (though that usually doesn't happen when i am asleep)

Wouldn't simply muting the device be just as effective? (with the added bonus of being aware in the morning if somebody did actually try to reach out to you during the night)

You can even set the phone to automatically silence everything every night, but still let through phone calls from certain contacts in case of emergency.

Then you would be muting also alarms. You can configure complex setup and what not, with some sounds buzzing and some not, but people want one button solution and simplicity (for good reasons).

Just checked and the alarm still ringed despite phone being muted; at least on my phone, alarms need to be muted explicitly.