This demo uses imperative chart updates. The generated code is a faithful Angular translation: open it in CodeSandbox to run and tweak.

import { Component, AfterViewInit, OnDestroy, ViewChild } from '@angular/core';
import {
  ChartComponent,
  ApexAxisChartSeries,
  ApexNonAxisChartSeries,
  ApexChart,
  ApexXAxis,
  ApexYAxis,
  ApexTitleSubtitle,
  ApexDataLabels,
  ApexStroke,
  ApexFill,
  ApexLegend,
  ApexTooltip,
  ApexMarkers,
  ApexPlotOptions,
  ApexResponsive,
  ApexGrid,
  ApexAnnotations,
  ApexStates,
  ApexTheme,
  NgApexchartsModule,
} from 'ng-apexcharts';

export type ChartOptions = {
  series?: ApexAxisChartSeries | ApexNonAxisChartSeries;
  chart?: ApexChart;
  xaxis?: ApexXAxis;
  yaxis?: ApexYAxis | ApexYAxis[];
  title?: ApexTitleSubtitle;
  subtitle?: ApexTitleSubtitle;
  dataLabels?: ApexDataLabels;
  stroke?: ApexStroke;
  fill?: ApexFill;
  legend?: ApexLegend;
  tooltip?: ApexTooltip;
  markers?: ApexMarkers;
  plotOptions?: ApexPlotOptions;
  responsive?: ApexResponsive[];
  grid?: ApexGrid;
  annotations?: ApexAnnotations;
  states?: ApexStates;
  theme?: ApexTheme;
  colors?: string[];
  labels?: any;
};

@Component({
  selector: 'app-chart',
  standalone: true,
  imports: [NgApexchartsModule],
  templateUrl: './chart.component.html',
})
export class AppChart implements AfterViewInit, OnDestroy {
  @ViewChild('chart') chart!: ChartComponent;
  public chartOptions: Partial<ChartOptions> = {
          series: [
            {
              name: 'Activity Score',
              data: [20, 100, 40, 30, 50, 80, 33],
            },
          ],
          chart: {
            height: 350,
            type: 'radar',
          },
          dataLabels: {
            enabled: true,
          },
          plotOptions: {
            radar: {
              size: 140,
              polygons: {
                strokeColors: '#e9e9e9',
                fill: {
                  colors: ['#f8f8f8', '#fff'],
                },
              },
            },
          },
          title: {
            text: 'Weekly Activity',
          },
          colors: ['#FF4560'],
          markers: {
            size: 4,
            colors: ['#fff'],
            strokeColor: '#FF4560',
            strokeWidth: 2,
          },
          tooltip: {
            y: {
              formatter: (val) => {
                return val
              },
            },
          },
          xaxis: {
            categories: [
              'Sunday',
              'Monday',
              'Tuesday',
              'Wednesday',
              'Thursday',
              'Friday',
              'Saturday',
            ],
          },
          yaxis: {
            labels: {
              formatter: (val, i) => {
                if (i % 2 === 0) {
                  return val
                } else {
                  return ''
                }
              },
            },
          },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}
Radar with Polygon Fill - Angular Radar Charts | ApexCharts.js | ApexCharts.js