Update installation guidance (#166930)

Update installation guidance for AMD architecture as it may be confusing
for users.
Relates elastic/beats#33042

x-pack/plugins/fleet/public/components/agent_enrollment_flyout/installation_message.tsx

@@ -39,7 +39,7 @@ export const InstallationMessage: React.FunctionComponent<Props> = ({
         <EuiText>
           <FormattedMessage
             id="xpack.fleet.enrollmentInstructions.installationMessage"
-            defaultMessage="Select the appropriate platform and run commands to install, enroll, and start Elastic Agent. Reuse commands to set up agents on more than one host. For aarch64, see our {downloadLink}. For additional guidance, see our {installationLink}."
+            defaultMessage="Select the appropriate platform and run commands to install, enroll, and start Elastic Agent. Reuse commands to set up agents on more than one host. For aarch64, see our {downloadLink}. This guidance is for AMD but you can adapt it to your device architecture. For additional guidance, see our {installationLink}."
             values={{
               downloadLink: (
                 <EuiLink