Yes I think they will reject you because no covid vax but I'm not 100% sure. Yes my wife was rejected for spouse visa last year because she didn't get the covid vax. Her experience at st. lukes extension was very bad, horrible place, kids crying, nurses really pressuring her to just get the shot. It's not st lukes hospital in bgc, it's some extension office next to robinsons in malate. Maybe you can go there and ask the guards if it's still required just to make sure before you book. But you already paid for the fiance visa...maybe you can delay it a few years and hope they drop the requirement?