It is running reliably here on Ventura. There are always issues on some user's systems - it isn't always QuickBooks that is the cause (things like bad fonts or damaged data bases or incompatible third party extensions though those have been far less of a problem for the last few years).

The slipstreams have been to add Ventura compatibility for the most part (as well as things like 1099s and security fixes etc).  It is supported. More fixes are still upcoming soon.