I am also in the similar boat. Were you able to use new DS-160? Please response when you get a chance. Thank you very much.
I am planning to get my H1B renewal stamping through Dropbox (I am sure I am eligible for Dropbox) sometime in May/June 2022. However, I do not have my H1B I-797 approved yet, I am guessing it will be approved sometime in March/April 2022. But, I do not want to wait to book an appointment until my I-797 approved because I may not get the dropbox slot at that time for the date/period I am looking for (assuming slots are getting filled fast). So, I am planning to submit DS-160 with the old(current) approved I-797 and then book the dropbox slot with that DS-160 form. After the new I-797 is approved, I would like to submit new DS-160 and take that new DS-160 to dropbox stamping. So, I want to know if a change in DS-160 is okay