PL-15 probably no, but PL-12/SD-10 is definitely a yes as showcased during 2024 Zhuhai airshow with a staggered ventral tandem hardpoint
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While obviously tandem hardpoints would have an adverse effect on flight performance, I see evidence against the suggestion that such effect is prohibitive for fighter maneuvers, as domestic PLAAF J-10Cs have repeatedly been showcased by state media during internal combative drills undergoing both BVR and WVR maneuvers with tandem hardpoints. I could try to pinpoint a few footages if you’d like.
Yes a tandem hardpoint of 2 massive PL-15s may seem a tremendous burden, but if you have been observing the USAF and US carrier aviation, fighters have endured far more egregious cases before.