Drupal sites, modules, themes development

Run composer with different php version

If your default php is 7.2 for ex. but your site is with php7.4-fpm, how to use the same php7.4 when using composer for managing the modules?
How to have multiple php? https://www.digitalocean.com/community/tutorials/how-to-run-multiple-php...
How to use them?
Just in virtualhost config use as