Phone Link is Microsoft’s late and closed source alternative to KDE Connect. It requires you sign in to a Microsoft Account for it to work.
This means all the transactions between your phone and your PC are monitored and sucked up by Microsoft.
There is scrcpy for that and you can launch arbitrary commands from KDE Connect too.
I’m fully aware of that but the scrcpy feature set is not integrated into KDE Conenct, therefore the features overlap to a degree but aren’t the same. Phone Link allows to launch apps from Windows, KDE Connect doesn’t offer the same. That’s no diss or anything, just stating facts.