Did the FFB update iRacing pushed at the start of 23 Season 3 have a negative impact on the Cloud Tuning? I only use the cloud and while my ole trusty Ford GTE feels the same, most other cars feel very disconnected. I don't remember the PCup or the GT4 feeling like the tires weren't connected to the road before.
The iRacing update didn't cause any issues with cloud tuning. Cloud tuning is fairly resilient.
However, it's not uncommon for iRacing updates to improve in some areas to the detriment of others. It's completely possible that something in the tire model or car physics took a step backward. Typically this means it will take 2 steps forward in a future update.