comment_reply_link() work wrong

A login button will only appear if you tick the box you mentioned. But if I understand correctly, you want to require login for one comment form but not for the other? That is a special case that is not provided for in the function. Or have I understood it wrong?

You understand correctly. I have 2 different contact forms on the site and they should have different behavior regardless of what function is selected in the admin panel

The comment_reply_link() function, or actually get_comment_reply_link(), works just fine. It is your requirement that is not supported by the function. Within the function, it is queried as a condition whether the tick is set – no matter how and where it is included. There is obviously no hook or property to influence this. And simply changing the label of the button does not change its link target.

From my point of view, there is only one possibility. You would have to change the value for “comment_registration” before the output where you want the login button. Example:

add_filter( 'option_comment_registration', 'custom_enable_registration' );

function custom_enable_registration() { return true; }

comment_reply_link(array(
  'reply_text' => __('Reply', 'am'),
  'depth'      => $depth,
  'max_depth'  => $args['max_depth'],
  'login_text' => __('Log in to Reply', 'am'),
  'before' => '',
));
remove_filter( 'option_comment_registration', 'custom_enable_registration' );

The trick here is that only for the execution of your custom link, the return of the setting is changed to force the output of the login link. Afterwards, this is undone so that it does not apply to the rest of the page.

Thanks. That’s what i need.