Here is what I found that works. <ion-text> will not work. ionic no longer supports sanitizers, use Angular and [innerHTML]. Then insert into label, div etc..

.ts

import { DomSanitizer } from '@angular/platform-browser';
import { Component, inject } from '@angular/core';

export class HelpPage {
  sanitizer = inject(DomSanitizer);

.html

<ion-label [innerHTML]="sanitizer.bypassSecurityTrustHtml(convertTEXT)" ></ion-label>