Steps to reproduce the issue

1. add a contact with just a name and an email address in a fresh joomla setup
2. add a menu item "contact-us" and give it a page display title "Contact ME" (to illustrate that it doesnt work) and select the contact person you created in step 1

Expected result

1. Contact Page Heading field is not showing (thus it cannot be hidden), instead a H2 "Contact" title is shown
2. Contact Page Heading should override the H2 Contact title
3. "Contact Form" Title should have the option to shown/hide

Actual result

you will see the NAME as H1 the word CONTACT as H2 and then CONTACT FORM as H2, where the form starts
You CANNOT hide the CONTACT page title by hiding the page header display (since it supposed to show "Contact ME" as stated in steps-to-reproduce)

System information (as much as possible)

Tested and worked around since Joomla 3, 4, 5 and 6 Alpha

Additional comments

Work Around:
you can hide the "Contact" title in the Menu Edit Tab "Contact Display Options" and set "Contact Information" to HIDE and "Name" to HIDE, but for the Contact Form title there is no alternative that I could find, so I used the language override to hide COM_CONTACT_EMAIL_FORM (text = Contact Form) by entering a space there.

create a language override and remove the text in these 2 contstants

• COM_CONTACT_DETAILS (text = Contact)
• COM_CONTACT_EMAIL_FORM (text = Contact Form)
  and remove (or change) the text.