Most plugins will load their assets in the header on all pages, because they know very little about your site, and how you’re using the plugin. This is a reason why it’s generally advisable to use plugins only if you have to: they’re built to work for as many people as possible, which means they’re not as optimized for your site as they could be.
Loading plugin scripts and styles conditionally (ex: specific page) could end up being challenging, especially as the site grows, as you’ll be maintaining conditions for the entire site, and plugins change.
Your first step will be to use the wp_dequeue_script() and wp_dequeue_style() functions to prevent the assets from loading, and then re-enqueue them behind your conditional logic. Make sure you call those functions after the plugin has enqueued its assets, otherwise, the assets won’t be dequeued. Typically the wp_enqueue_scripts hook with a late priority should work (untested):
add_action( 'wp_enqueue_scripts', static function () {
wp_dequeue_script( ... );
}, 999 );