Interesting concept, might try it! I've used Quitter (https://marco.org/apps https://marco.org/apps) for months to auto-quit my email app & Slack after a time i

Interesting concept, might try it! I've used Quitter (https://marco.org/apps https://marco.org/apps) for months to auto-quit my email app & Slack after a time interval. This is a more proactive approach. You'd still have the issue of being able to open multiple browser tabs, and they can be more distracting than apps. But there are already plenty of browser extensions for that; personal fav: the Defaulter in https://github.com/louisbarclay/nudge https://github.com/louisbarclay/nudge (unfortunately temporarily unmaintained)