Using of the plugin for a new version on prévious branch

I have a site under WP 6.4.3 ; WP admin suggests WP 6.5.x, but some plugin’s need to be tested before installed. And many users/writers are not ready for the new article editing features (they will be teached next summer). So I wan to upgrade to WP 6.4.5 (security upgrade for 6.4 branch).

Does the plugin do the job for this upgrade 6 4.3->6.4.5 or does it work for backward only ?

If it is OK, must I change config.php with “define ( ‘WP_AUTO_UPDATE_CORE’, true);” ?

Thanks for answer