I mostly suppress my reflux through a twice daily regimen of cider vinegar (diluted* ), more walking, eating more conscientiously, and forcing myself to sleep on my left side.

These are all very minor changes, and the biggest impact came from sleeping on my side.

My gastroenterologist was very against the daily PPI my primary put me on. There are a lot of potential negatives there.

* Straight up cider vinegar is very acidic and can irritate or damage the throat and mouth. I drink 1/2 tbsp in a glass of water.