Correct, I did not have this issue. My 2020 year U.S. model (Euro4 at best), only had one O2 sensor - of which I've since removed due to to my current open-loop tune.
While the ≥2024 EU models started mandating the dual pre+post-cat O2 sensors, this post implies that U.S. version of the refreshed 2024-year model still only has the one O2 sensor. I am not certain, however, if the ≥2025 U.S. models have switched to two O2 sensors or not.