Nah. Just turn off all notifications outside of mentions. If people want to reach you they can mention or message you. I do this and don’t check Slack for hours or even a whole day.
Most problems people have with Slack are people problems.
I'm not on Slack, we have Lync or whatever Microsoft calls it now at work. I have all notifications off, so I only notice new messages when I bring that window to the foreground.
Most problems people have with Slack are people problems.