RSS for Events – Latest Events

yes, you can try template file at wp-content/plugins/events-manager/templates/templates/rss.php then change this line
$EM_Events = EM_Events::get( array('scope'=>'future', 'owner'=>false ) );
to
$EM_Events = EM_Events::get( array('scope'=>'month', 'owner'=>false ) );

sample em rss url: https://yoursite.com/events/rss/ or shortcodes like [events_rss_link], [events_rss_url]

to use templates: https://wp-events-plugin.com/documentation/using-template-files/

https://wp-events-plugin.com/documentation/shortcodes/

https://wp-events-plugin.com/documentation/event-search-attributes/