Should we use NgZone.runOutsideAngular() when handling fromEvent with filters in Angular

I came across this implementation of the outsideCLick directive

ngOnInit() {
this._ngZone.runOutsideAngular(() => {
fromEvent<MouseEvent>(document, DomEventsEnum.MOUSEDOWN, { capture: true })
.pipe(
filter(() => this.clickOutsideEnabled),
filter((event) => !this.isClickInside(event.target as HTMLElement)),
takeUntilDestroyed(this._destroyRef),
)
.subscribe((event) => {
event.preventDefault();
event.stopPropagation();
this._ngZone.run(() => this.clickOutside.emit(event));
});
});
}


I'm wondering if there is any actual benefit in wrapping this logic with ngZone.runOutsideAngular()?

Since CD is only triggered when clickOutside.emit() is called due to filters in any case - is runOutsideAngular actually doing anything useful here?

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