Chrome has default font fallbacks set up on a per-script, per-OS basis. See for example https://chromium.googlesource.com/chromium/src/+/master/chrome/app/resources/locale_settings_mac.grd#160, which is the default font for characters in the Japanese-language script.

Electron does not set up these font fallbacks, and as a result, font rendering in those scripts does not match that of Chrome. Further, it's impossible to set it up on the app side to use the appropriate font fallbacks, because of #15480.
atom/browser/atom_browser_client.cc
std::vector<std::string>* additional_schemes) {
  auto schemes_list = api::GetStandardSchemes();
  if (!schemes_list.empty())
    additional_schemes->insert(additional_schemes->end(), schemes_list.begin(),
                               schemes_list.end());
  additional_schemes->push_back(content::kChromeDevToolsScheme);
}
void AtomBrowserClient::GetAdditionalWebUISchemes(
    std::vector<std::string>* additional_schemes) {
  additional_schemes->push_back(content::kChromeDevToolsScheme);
}
void AtomBrowserClient::SiteInstanceDeleting(
    content::SiteInstance* site_instance) {
  
  
  for (auto iter = site_per_affinities.begin();
       iter != site_per_affinities.end(); ++iter) {
    if (iter->second == site_instance) {
      site_per_affinities.erase(iter);
      break;
    }
  }
}
std::unique_ptr<net::ClientCertStore> AtomBrowserClient::CreateClientCertStore(