Most apps don't have a literal "hide friend" button
Unlike apps built around a curated friends list, WhatsApp and Telegram pull contacts straight from your phone's address book, so there's no separate step to hide a person from a friends list. Archiving the chat achieves the same practical goal β decluttering what you see β without deleting anyone or losing your conversation history. LINE is a bit closer to a true hide feature, since it lets you hide a specific chat room directly from the talk list.
Archiving vs. blocking vs. deleting
Archiving only changes what shows in your main list β the other person can still message you normally and you'll still get notified. Blocking is a much stronger step that stops their messages and hides your profile from them, while deleting removes the contact from your address book entirely.
Frequently Asked Questions
Will the other person know I archived or hid our chat?
No. Archiving or hiding a chat is a purely personal, one-sided action β the other person gets no notification and can still message you normally.
How is archiving different from blocking?
Archiving only affects what you see in your chat list β messages and calls still come through as normal. Blocking is much stronger: it stops the other person's messages from reaching you and hides your profile and activity from them.