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: [76, 67, 61, 90],
          chart: {
            height: 390,
            type: 'radialBar',
          },
          plotOptions: {
            radialBar: {
              offsetY: 0,
              startAngle: 0,
              endAngle: 270,
              hollow: {
                margin: 5,
                size: '30%',
                background: 'transparent',
                image: undefined,
              },
              dataLabels: {
                name: {
                  show: false,
                },
                value: {
                  show: false,
                },
              },
              barLabels: {
                enabled: true,
                useSeriesColors: true,
                offsetX: -8,
                fontSize: '16px',
                formatter: (seriesName, opts) => {
                  return (
                    seriesName + ':  ' + opts.w.globals.series[opts.seriesIndex] + '%'
                  )
                },
              },
            },
          },
          colors: ['#1ab7ea', '#0084ff', '#39539E', '#0077B5'],
          labels: ['Email', 'Push', 'In-App', 'SMS'],
          responsive: [
            {
              breakpoint: 480,
              options: {
                legend: {
                  show: false,
                },
              },
            },
          ],
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJpc3N1ZURhdGUiOiIyMDI2LTA0LTE2IiwiZXhwaXJ5RGF0ZSI6IjIwNTItMDQtMTciLCJwbGFuIjoiZW50ZXJwcmlzZSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiXX0=');
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}
Custom Angle - Angular RadialBar / Circle | ApexCharts.js | ApexCharts.js