TYPO3 Core

Since TYPO3 10.4 the doktype is not limited to any range of numbers.
With #97626 we fixed the an issue ElementBrowserPageTreeView:: ext_isLinkable()

The behavior should not be hardcoded in the function but configurable in $GLOBALS['PAGES_TYPES'] to define which page type can be linked in frontend.

Example:

$GLOBALS['PAGES_TYPES'] = [
    (string)PageRepository::DOKTYPE_BE_USER_SECTION => [
        'allowedTables' => '*',
    ],
    (string)PageRepository::DOKTYPE_SYSFOLDER => [
        //  Doktype 254 is a 'Folder' - a general purpose storage folder for whatever you like.
        // In CMS context it's NOT a viewable page. Can contain any element.
        'allowedTables' => '*',
        'isLinkable' => false,
    ],
    (string)PageRepository::DOKTYPE_RECYCLER => [
        // Doktype 255 is a recycle-bin.
        'allowedTables' => '*',
        'isLinkable' => false,
    ],
    'default' => [
        'allowedTables' => 'pages,sys_category,sys_file_reference,sys_file_collection',
        'onlyAllowedTables' => false,
        'isLinkable' => true,
    ],
];