Any benefits to doing direct front delt work while working on the bench press? I don't need any extra front delt for aesthetic purposes but I know there's a lot of front delt involved in the bench press. Should I be hitting front delts with my accessory/fluff work?
No, I would build them specifically with all of your pressing. Especially if there’s any incline or overhead work in. If not, yes front raises are fine in off season, but when you are close to a comp everything you do should have a reason.
The only strength a front raise can give your bench is the indirect strength potential you will derive from increased cross-sectional area. How much bigger can they get now before this comp? And if they grow any, how much time can you actually strength train at that new size to cultivate real strength from that potential? And from that cultivated strength, how much can you transmute into the realization of peak power?
The answer is: none.
Time’s up, because that ship sailed months ago. Now it’s about finalizing the display of power with the strength you’ve already built based on your current foundation. Comparatively, you might still be able to get a tad bit stronger with an extra set of quality bench work, or you could spend that energy on hypertrophying things that help prevent injury and directly shorten your bench stroke, like rear delt work (thicker shelf means you are closer to the barbell when laying on the bench holding the bar over you). Or shoulder mobility afterwards to help recovery & prevent injury, or lat or bicep work for more stability/leverage.
Bigger lats or biceps is tantamount to wearing a thick tight sweater, helping you control the bar path a bit easier and piling up material at the bottom to stop the weight sooner. That is hypertrophy that will immediately help. And rear delts as mentioned for upper back thickness when retracted.