Yes this is true for now. But as time goes on, SA will show more and more benefits as it becomes totally non reliant on the LTE backbone.
My iphone 12 gets anywhere between 250 and 900mbps depending on the time of day (due to different amounts of saturation). Yes this is very good but SA will not only get greater and more reliable connection distances but also some tests have indicated speeds up to 3gbps. That is amazingly fast. I am more interested in distances than speed tbh.
I've been reading articles talking about all this and it somewhat appears that T-Mobile may have actually given me the correct answer. From what I am gathering, the N41 band, which is the one that both my phones connect to at my home, is only using SA 5G in a small part of the country, basically for test purposes and SA 5G is more widely available right now on band 71 which I rarely connect to at all. So they may have been right on when they said the Cell Mapper app on my Galaxy S22 wrong.
How is the signal strength on the iphone 14? Have you noticed anything either better or worse than what you got before using this phone?