How do you turn off all notifications for a channel?

To turn off all notifications for a channel, selecting "Channel notifications" and setting it to "Mute" is the correct approach. This feature allows you to specifically silence notifications from that particular channel while still receiving messages sent to it. Muting the channel means you won’t be alerted to new activity, which can be especially useful if you want to focus on critical tasks without distractions.

The other choices do not specifically address the need to mute notifications for a specific channel. Deactivating your Slack account would disable access to Slack entirely, which is not a practical solution if you want to manage notifications selectively. Changing overall notification settings impacts notifications across all channels and direct messages, rather than just one specific channel. Blocking the channel temporarily could hide it from your channel list or temporarily prevent notifications, but it does not provide the granularity of control that muting offers; you might miss important updates upon unblocking it later. Muting is tailored to ensure you maintain access to the channel while controlling notifications effectively.