Only check it on a schedule, keep it closed, and turn off all notifications
I agree that your suggestion is rational, but the article brings up addiction and lack of control which I feel describes me. I’d love a “just block it”, escape hatch of a solution but maybe I’m SOL and have to learn mindfulness
Not possible at "remote first" workplaces.
It's best to assume that not every workplace functions in a way compatible with this universal "let's turn off Slack and only check it once an hour" scenario. Also, these decisions cannot be made on an individual basis -- that's the best way to get fired -- but everyone else must be on board, at least your immediate peers. If you're not their boss, and they don't see the benefit, this will gain no traction.
The reality is that no, not everyone can remove Slack notifications and only check it once an hour or whatever.
It's the same with bullshit meetings. Just decline the invitation and you'll be surprised how little anyone will usually care.
Is it so hard to accept that "universal" advice is seldom universal, and that your circumstances may not apply to everyone?