Passing username in the URL to a login form [duplicate]

I am trying to pass a username value to my Learning Management System login form but unfortunately, it's not working and I will highly appreciate any help.

I am trying on two different web forms and both aren't working

Login form URL: https://testingfirm.talentlms.com/

Login Form URL2: https://www.softaculous.com/demos/eFront/

I want to pass the username field and I have checked the name for the field is "login" on TalentLMS and Login_box in efront LMS but when I send the value in the URL, nothing happens

Doesn't work

https://testingfirm.talentlms.com/index?login=khan

https://www.softaculous.com/demos/eFront?login_box=khan

Any help will be highly appreciated.

Thank you, Muhammad