Angular is it possible to detect if query Paramter has changed?

You can subscribe to the params in the root component

constructor(route:ActivatedRoute) {
    route.queryParams.subscribe(p => console.log(p.myQueryParam)); // you can also do this in ngOnInit
}

See also https://angular.io/api/router/ActivatedRoute

You can have query params on other route levels as well, but then they are called matrix parameters.

See also the end of this section https://angular.io/guide/router#route-parameters-required-or-optional

You can subscribe to the params observable provided by ActivatedRoute module to observe changes in the query parameters.

constructor(private route:ActivatedRoute) {
    this.route.params.subscribe(
        (params:Params)=>{
            console.log(params['yourId']);
    };
)}