Leftovers in db when plugin is uninstalled

When de-activating, then uninstalling the plugin in the admin “plugins” backend, there are some leftovers in the db not cleaned up:

wp_options:fs_active_plugins contains:

s:6:”newest”;O:8:”stdClass”:5:{
s:11:”plugin_path”;
s:43:”add-expires-headers/add-expires-headers.php”;
s:8:”sdk_path”;
s:28:”add-expires-headers/freemius”;
s:7:”version”;
s:5:”2.3.2″;
s:13:”in_activation”;b:1;s:9:”timestamp”;i:1584787157;
}