component.ts

public user$: IUser;
private userStoreSubscription: Subscription = new Subscription();

constructor(private store: Store<UserState>) {}

ngOnInit(): void {
  this.userStoreSubscription = this.store.select(getUser).subscribe(res => {
       this.user$ = res;
  });
}

ngOnDestroy(): void {
    this.disabledUndoButtonSubscription.unsubscribe();
}