I did it after Trump terminated TPS in 2019. I did not use a lawyer but my dso did help me. I graduated my masters with TPS and then went to community college for associate degree and filed change of status. It was approved pretty quickly at that time. May be like 2 or 3 months. I did get lucky though, I got RFE from uscis as soon as I applied and they said I already was maintaining a valid F1 status even though my Sevis had been terminated for 2 years. I had to get a letter from my previous university saying I graduated with TPS and did not have active Sevis. They reinstated me like 2 days after that letter was delivered. Later when i applied for green card they never brought that up, only asked me if i had always maintain valid legal status and I was approved. So it can be done, good luck to you. You do have to write a cover letter explaining you timeline and why you could not maintain F1 status.