Thanks for the dates. I’m surprised you got scheduled for two bio appointments almost back to back.
Assuming the AOS filing was received by USCIS on or before 10/13/2021, you actually did not need the first EOS application talk less of the second one which you filed on 03/29/2022. So the two lawyers that told you you needed to file the second EOS were completely wrong with that recommendation.
It seems to me your IO may be waiting for the outcome of your pending EOS applications before scheduling your AOS interview. I’m basing it on the fact that quite a couple of folks from the same FO who filed for AOS after you either already got interviewed and approved; or already got their ILs and are now waiting to attend the interview as scheduled. You probably might have been approved by now if you didn’t have the pending EOS applications is my guess.
In terms of what you can do at this point, I’m not quite sure considering your lawyer already submitted an expedite request, maybe just wait for its outcome. I don’t know how long ago it was since it was submitted, so I cannot hazard a guess as to how long you should wait.
You can also initiate a congressional case inquiry. However since you’re a visitor and not a US resident, I don’t know if the congressional rep/senator with jurisdiction over your current address will be willing to assist with your case, but it is worth giving it a shot.