<mat-toolbar>
  <a routerLink="" routerLinkActive="active" class="mat-button">Home</a>
  <a routerLink="path1" routerLinkActive="active" class="mat-button">Link 1 - Style is applied</a>
  <a routerLink="path2" routerLinkActive="active" class="mat-button">Link 2 - Nothing happens</a>
</mat-toolbar>

<mat-toolbar>
  <a routerLink="" routerLinkActive="active" mat-button>Home</a>
  <a routerLink="path1" routerLinkActive="active" mat-button>Link 1 - Style is applied</a>
  <a routerLink="path2" routerLinkActive="active" mat-button>Link 2 - Nothing happens</a>
</mat-toolbar>