If you don't think $650 is worth the return in performance, then you are using the wrong company/person for your tuning.
On a modern Fords the HPTuner based solutions have proven to be superior. The RTD requires a laptop, but the logging it is capable of is FAR better than ANYTHING SCT can do.
You need a good tuner, that knows this Motor and Trans, contact Adam@ZFG, use the below linked form.
https://www.tunedbyzfgracing.com/contact-us
He tunes my Explorer ST, and the Expedition. They are the 4th and 5th vehicle of mine he has tuned.
Also, the 18/19's have the same PCM/BCM module configurations, but can have different strategies depending on build date, model, and options. The 2020's ARE NOT the same. The have different modules and PCM. Strategies are completely different. This is why FORSCAN programming for them is different.