Depending on the type of work, setting (office, remote) and circumstances, tools like Slack become necessary. And when collectively used well with agreements, it becomes valuable. The tool is not the cause, I agree.

Getting off Slack was an experiment to surface its benefits and drawbacks. Although I am content with being offline that does not preclude a scenario where I check Slack once or twice a day, as I do with email. The onus is on the user to manage their tools.