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 think there are some UI niceties to the 'app' version but it's essentially the same.
Teams refers to Microsoft's competing product. Like Slack, its desktop app is really just the web version.
> 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?