Requires a quick fix to work, lacks functions

To make it launch at all, you need to open wp-content\plugins\vkontakte\includes\admin\settings\class-admin-settings-page-api-integration-tab.php and replace line #19 with these two lines:

$application_id = new Vkontakte_Settings();

$application_id->get_app_id();

Since it doesn’t provide access to group, poll, recommendations widgets anymore, I dropped it and haven’t tested other capabilities.

WP v. 6.3.2