Edit 2: I accidentally minimized Steam to tray, but Gnome has no tray. Steam continues running invisible without being represented somewhere in the UI. One of the developers of Gnome (the only DE where this happens) said this is an application bug[1]. And then continues to complain that devs only test against "stock" environments.... but Gnome is the stock environment. What an ass.

I do understand why people bash Gnome and their developers. The hate is deserved.

[1] https://discourse.gnome.org/t/feature-request-show-when-apps...