Slack app has 4 trackers, requests 21 permissions on Android. Harder to block trackers, while their more tech-oriented audience probably uses browser adblockers more often.

https://reports.exodus-privacy.eu.org/en/reports/com.Slack/l...

As an engineering manager in an unrelated field... this could also be a way to not have to support a feature on X platform because I don't have the resources to make it work on every possible mobile browser. Or the mobile browsers don't support X feature and I don't want to (or can't) spend the resources to make it work there, QA it there etc. It's not something likely to be able to curb with regulations.

I mean I personally keep Slack on my Dock since it's open pretty frequently. This integrates it even more into my workflow since I can quickly check and see if I have any unreads/etc. making it more grating to switch to another chat app. Maybe it's not a "dark pattern" but it certainly is a method to increase adoption.

One major benefit of native app over web app is their ability to send notifications to get the user's attention.

I don't know that they do, but they could potentially read your local files as part of telemetry, gps, nearby wifi network ssids and MAC addresses, etc.