The most serious problem with automated updates is that they may cause your website to crash. While this is extremely rare, you should be aware of the possibility, particularly with major updates. If this occurs, it is most likely due to incompatibilities between the code of your plugins and themes, WordPress Core, and the code modifications you have made. In such cases, being able to restore your website using a backup is important.
Another potential issue with automatic updates is unwanted feature changes. The automated updates bring in features that are sometimes not needed. This disrupts the workflow as tweaking every element and feature — to suit your unique vision can be a lot of work.
If you have issues after updating a plugin or theme, you should seek assistance from the plugin or theme’s developers. Besides that, you may create a staging website to test the improvements before implementing them on the live site.
To disable the automatic updates, add the following code snippet in the wp-config.php file.
Code:
define( 'WP_AUTO_UPDATE_CORE', false );
To access the file, you can use File Transfer Protocol (FTP) or the File Manager in your web host’s cPanel. You can look for the file in the public_html folder. Open the file and add the code snippet towards the end, right above the line that says /* That’s all, stop editing! Happy publishing. */ as shown below.
credit to: RankMath
https://rankmath.com/blog/disable-au...-in-wordpress/