My reflux (GERD) worsened with Covid and afterwards. Covid is brutal if you have a rough case. I take Protonix 20 mg (Prescription) and Gaviscon - 2 tablets before meals (over the counter) if I am having a hard day with reflux.
Also, do not eat anything after 8 pm if you can. Elevate the head of your bed, do not eat large meals, don't wear a tight belt around your waist, lose any extra weight as this makes reflux (GERD) worse and steer clear of real acidic foods and raw onions and foods that trigger a flare up.

My mom had the hiatal hernia repair back in the 80's and it did wonders, but, your doctor is correct in that you cannot vomit anymore. Back then, the surgery was almost unheard of, but, my mom got choked all the time and it was so scary. It was not an easy surgery back then. I am sure it has come a long way.

Best regards and God Bless You!