Get Chrome/Chromium version and alert

getChromeVersion.js

const getChromeVersion = () => {
  const raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)

  return raw ? parseInt(raw[2], 10) : false
}

if (getChromeVersion() < 93) {
  alert('We recommend you use a Chrome browser version 93 or greater otherwise you may experience degraded service.')
}