Allow windows to grab focus?

I’m new to KDE and I have some mismatched expectations with window activation and focus:

  1. If I click on a Thunderbird notification for a new email, I expect TB to bring itself to the foreground and show the email. Instead, clicking on the notification does not bring up the TB window—all it does is add a very discreet orange background to the taskbar icon with no other indication that anything’s happened.

  2. In Konsole, if I run /opt/sublime_text/sublime_text README.md to open a file in Sublime Text, I expect ST to bring itself to the foreground and show the file. If ST is not already open, it will do what I expect. If ST is already open, it does not bring up the ST window—all it does is add a very discreet orange background to the taskbar icon with no other indication that anything’s happened.

In both scenarios I want the app to raise itself to the foreground and take focus. Is there a way to allow certain apps to take focus when activated, either thru following a notification popup or from executing a shell command?

BTW, the apps I give in the above examples are not the only apps that do this: it happens with pretty much all apps I use while running KDE. GNOME started doing this annoying behavior several releases ago, instead showing a notification saying “Application SuchAndSuch is ready”, but I used an extension called “noannoyance” to get around it for certain apps. I’m hoping there’s a built-in way to fix this problem in KDE.