Mysterious new SharePoint Online features

I am currently setting up a migration activity, so I am using the PNP provisioning processes.

For a site collection template I see these mysterious GUIDS in the xml. I wonder what they are? I am having a little bit of grief during the templating process, could one of these be the culprit?

      <pnp:Features>
        <pnp:SiteFeatures>
          <pnp:Feature ID="94280101-dc63-4b83-842a-8707b1afb62d" /><!--the mysterious SharePointHomeCache  -->
        </pnp:SiteFeatures>
        <pnp:WebFeatures>
          <pnp:Feature ID="d5a4ed08-27b9-4142-9804-45dec6fda126" /><!--DefaultSPGroupsSiteMaster-->
          <pnp:Feature ID="8c6f9096-388d-4eed-96ff-698b3ec46fc4" /><!--MaintenanceLogs-->
          <pnp:Feature ID="de12eebe-9114-4a4a-b7da-7585dc36a907" /><!--TemplateExtensions-->
          <pnp:Feature ID="e233eb34-e720-4ff9-9f53-a5aabc706d12" /><!--DefaultSPGroupsAsync-->
          <pnp:Feature ID="9eabd738-48b1-4a40-a109-aa75458ed7ea" /><!--MUIWeb-->
          <pnp:Feature ID="e3dc7334-cec0-4d2c-8b90-e4857698fc4e" /><!--GroupHomepage-->
        </pnp:WebFeatures>
      </pnp:Features>