Thank you for your post, however, I am afraid I do not follow.
Last Aug they produced a small run of Model Y RWD cars for certification. I think all the range numbers and certifications are done, but they stopped a planned fall release because of strong AWD sales. You can see articles about the limited RWD run and Elon's tweet about Model Y RWD coming soon on July 20 last year.
The key problem is batteries, Panasonic and other suppliers are not keeping up with higher profit AWD and energy sales growth. Until Tesla has their own factories, and they are producing batteries in volume I do not think we will see the Model Y RWD. Maybe Q1 2022, if ever. These are billion-dollar decisions despite I think an honest desire to deliver the Model they just do not have the battery capacity.
We see this also with production delay in the Semi. Although I think they are going to do a limited run or Semi production and delivery them to some large fleet customers for minor design update feedback.