Hi,
Below Path is without recaptcha form page source code :
C:workfreelancerstanmagentoyour-themeappdesignfrontendyour-themeyour-themetemplatecontactsform.phtml
Withc Recptcha Form Page Source Code :
C:workfreelancerstanmagentoyour-themeappdesignfrontendyour-themeyour-themetemplatefontisrecaptchacontacts.phtml
Sometimes the path change to “base” theme inside. Example Below Path :
C:workyour-themeappdesignfrontendbasedefaulttemplatefontisrecaptchacontacts.phtml
here what you want change, that is work well.