Questins regarding Installing OPCache

I found this tutorial online-
https://www.mysterydata.com/enable-apache-dso-mod_php-and-zend-opcache-on-cwp-cenos-web-panel/
(Shared by a member here)

I am a complete noob, if I follow this tutorial step-by-step, will it install and run OPCache or any commands are missing?

I would not do that as it say it will disable the ability to use version switcher. PHP-FPM is a better option and it's baked in to CWP.

Thanks for your input! Any other suitable alternative to OPCache which would be comparatively easy to install and use?

opcache is an option you can select when you compile your PHP versions