A must before updating to a new PHP version

My WordPress was using a very old version of PHP and I kept getting warnings that I soon would not be able to upgrade WordPress any longer because my version of PHP would no longer be supported. I wanted to make sure that all my plugins would be compatible with PHP 8.3 because I didn’t want the PHP upgrade to somehow break my site. I paid the reasonable $1 that the Compatibility Checker asked for a monthly subscription, and it noted which of my plugins were not supported. I removed them and had a successful upgrade to PHP 8.3 without breaking my site. The support folks for this plugin respond instantly in their webchat when I had questions.