Use Angular’s Meta service

import { Component } from "@angular/core";
import { Meta } from "@angular/platform-browser";

@Component({
  selector: "app-page",
  template: "<h1>My Page</h1>",
})
export class PageComponent {
  constructor(private meta: Meta) {
    this.meta.updateTag({
      property: "og:image",
      content: "https://mosaicimg.com/use?url=yourwebsite.com/your_slug",
    });
  }
}