I don't think I will ever use something like that. I work in over 10 PCs everyday and my only synchronisation is a 16 GB USB stick. I keep all important work, apps and files there.
Generally, this seems an obvious and correct decision for Tor.
Barring integration with a locally run LLM, AI doesn't make sense for the Tor security posture - you don't want to be routing content to unintended/insecure third parties, period.