It has been removed in TYPO3v10 and throws a deprecation notice:
TYPO3 Deprecation Notice: Setting typolink.useCacheHash has no effect anymore.
Remove the option in all your TypoScript code and Fluid templates.
in typo3/sysext/frontend/Classes/Typolink/PageLinkBuilder.php line 155
Since the introduction of native speaking URLs, the parameter has no effect anymore: https://docs.typo3.org/c/typo3/cms-core/9.5/en-us/Changelog/9.5/Feature-86365-RoutingEnhancersAndAspects.html#impact
It has been removed in TYPO3v10 and throws a deprecation notice:
https://docs.typo3.org/c/typo3/cms-core/10.4/en-us/Changelog/10.0/Breaking-87193-DeprecatedFunctionalityRemoved.html
Resolves: https://github.com/FluidTYPO3/vhs/issues/1774