And Caddy hasn't really improved their system in 2 years.
And Caddy was the only company even vaguely competetive 2 years ago (and only on about 10% of the roads Teslas system can be used on)
I've used TACC and/or AP equivalents from half a dozen other brands via rentals-Lexus, Ford, Hyundai, Toyota, Infiniti, Kia, etc... and they're all hot garbage compared to Tesla.
Caddys system is genuinely pretty good- as long as you don't mind it working vastly fewer places and not actually doing anything besides the equivalent of basic AP/TACC.
Nissan and Lexus have both been selling hands off systems since last year too. They are ahead of Tesla, no hands required and HD mapping already covering all major roads in the country.