Hide that website has been made with Angular

I was wondering if I could have an opportunity to hide that my simple website was made with Angular. I could see this <app-root _nghost-iie-c28="" ng-version="11.0.4"><router-outlet _ngcontent-iie-c28=""> on the website and thought that all Angular Websites got these tags, but no. So, which way can I hide them?

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