> The Slack app is essentially a Chromium browser running the usual web-based Slack. It uses the same amount of resources running in a tab in your browser.

I would expect that a pinned Slack tab in Chrome/Edge would be able to share some resources with the browser that a separate Slack app can't.

Has anybody tested the performance difference between running 100 browser tabs vs. running the same webapps as 100 electron processes?