There's some guys using LED Seal, but I think you lose a little output from it, and there are other guys that posted they've used a de-domed light for one year and no problems at all. More info here: https://budgetlightforum.com/t/-/17374. Some say the small, frail wires are gold, so they won't oxidize or anything, and the emitter seems to have a coating on it anyway.
For me, when I get a chance to do a couple of more de-domes, I'll use the gas soak method (24 hrs+), verify all the silcone is off the LED, pour some isopropyl alcohol over it to remove gas residues, and leave as is -- that's the plan anyway. It seems to be the best, easiest way to go.