[jwells89]

> Inconsistent behavior on double click of the title bar (Chrome maximizes and Slack doesn't) is annoying.

This is actually on third party app devs, not apple. Note that double-clicking the titlebar works the same in stock apps, as well as in most mac-only native apps.

Cross-platform apps like Slack often hide the native titlebar and draw their own which doesn’t implement all the native behaviors or even try to mimic them. Papercuts like this are part of why Mac users are more likely to be discontent with cross-platform apps.

For many Electron apps a decent work around is to install them as PWAs, which can be done with both Safari (File > Add to Dock…) or your preferred Chrome-cousin. Those draw proper titlebars.