I thought php hasn't shipped jit yet (as in its behind a disabled by default config)

PHP 8 shipped with JIT on by default unless I'm mistaken.

	▲	bawolff 9 hours ago \| parent [-]
		https://www.php.net/manual/en/opcache.configuration.php says its off by default as of php 8.4 (and prior to that it was technically on but effectively off due to other configs)