Oppo
Allow Messages During Do Not Disturb auf Oppo
Do Not Disturb on Oppo mutes sound, vibration, and pop-up alerts for all apps by default, including your messaging app. Coloros treats every notification the same way once the mode is on, so a text from your partner is blocked exactly like a promo notification unless you set an exception.
The setting sits under Settings ➔ Sound & vibration ➔ Do Not Disturb ➔ Allow messages from. From there you pick who breaks through the silence: everyone, only people saved in your contacts, or only contacts marked as favorites.
Choosing Everyone defeats the purpose of Do Not Disturb if you get a lot of spam texts, so most people pick Contacts or Favorites instead. Favorites is the tighter filter and works well if you only want a partner, kids, or a handful of coworkers to reach you during focus time or overnight.
This setting only affects messages, not calls or other app notifications. If calls also need to ring through, check the separate allow-calls exception inside the same Do Not Disturb menu.