Apple Safari was targeted, but then maybe going after bigger fish? Like Microsoft Teams, Oracle Virtualbox, Microsoft Windows 11, Ubuntu Desktop, and Telsa Model 3 Infotainment System, all successes.
Ah yes, I never thought of Safari when I searched browsers using Ctrl-F Indeed much bigger fish, perhaps with bigger holes to exploit.
It's no surprise to me that they were able to hack just about everything, so Windows, Ubuntu, Safari, Firefox, MS Teams and VirtualBox. However, we shouldn't forget that when it comes to hacking Windows and Ubuntu you will always first need to get malware running on the system, for example via browser exploit, before you can proceed to use privilege elevation bugs in the OS.