Dell has updated its website in light of the recent seemingly incorrect mention of an "RTX 2050" being available to some systems. However, the new information could also be considered a leak, as now there is mention of a GTX 1660 Ti instead, which seems to confirm a mobile version of this graphics card is on the way.
https://www.notebookcheck.net/Dell-clears-up-RTX-2050-typo-leaks-mobile-GTX-1660-Ti-instead.412903.0.html