https://play.google.com/store/apps/details?id=com.radefffactory.lockdown&hl=en&gl=US
I use this app and activate it with Bixby Routines. Works like a charm
There's an option to filter messages but unfortunately nothing you can actually do with that message.
Pretty sure Buzzkill can delete the message or at least dismiss it automatically.
Buzzkill: https://play.google.com/store/apps/details?id=com.samruston.buzzkill
lol and they still can't find a way to toggle it...
for those wondering how, use this app as an action, opening it just toggles the flashlight.
https://play.google.com/store/apps/details?id=ru.irk.ang.balsan.shortcutled
I just discovered an App called Kinscreen and that is the first app that really keeps the screen on.
Screen on while charging is an option in this app..
https://play.google.com/store/apps/details?id=com.teqtic.kinscreen