WordPress "requires" PHP 7.4 or higher. That doesn't mean it's recommended.
For the latest version of WordPress, WordPress 6.6 the recommendation is PHP 8.2
So, here you have the compatibility information, this time, for WordPress 6.6.
make.wordpress.org
I can vouch that WordPress operates just fine on PHP 8.2 (your plugins/extensions/components/themes may not... that's the key).
You can see a full list of this at:
The relationship between WordPress, PHP and MySQL / MariaDB is very close, and it is very important that the versions of these technologies match for proper operation. The following matrix is focus…
make.wordpress.org
WordPress plays into this a little bit, they don't exactly provide a haven that promotes good security. WordPress will support all of their ancient releases... until they no longer do. When that is, nobody knows. That means that when a new minor release is made for WordPress... they'll release a new version for 6.6, 6.5, 6.4, 6.3, 6.2, 6.1, 6.0, 5.9, 5.8, 5.7, 5.6, 5.5, 5.4, 5.3, and so on.
If you ask WordPress what version they support, they'll tell you they only support the latest release - which as of the time of this writing is WordPress 6.6. Instead of ending the life of an ancient version of WordPress, say WordPress 4.9... they just continue to pump out updates while also stating that they don't support it.
This just further embellishes people and web hosting providers to never update anything. This leads to WordPress site owners refusing to update, and there by using old, outdated, and abandoned plugins/extensions/components/themes. And then web hosting providers placate them by continuing to allow ancient PHP versions to be in use.
WordPress follows the PHP way of releasing things. They'll release 3 new major versions in a calendar year. And rarely do those new major versions contain anything mind blowing new.
I would advocate for everything to slow their release schedule down. Maintain the software that you have instead of trying to add every new bell and whistle. The people that write these softwares often aren't the ones that are actually using it. The PHP developers are oblivious to just how many people are still using PHP 7.4 and PHP 8.0 - they just keep churning out new releases. WordPress developers are oblivious to how many people are using WordPress 6.2 or some such version, they just keep churning out new releases. Take a moment and step back and see that most people really don't want to update their software that often.
You could sort of kind of add DirectAdmin to this list. How much has really changed from DirectAdmin 1.650 to 1.666? Couldn't those changes just be maintenance releases to 1.650?