F-35, F-22 and basically every other stealth aircraft do not have such treatment, J-20 is a edge case. J-35 likely do not need such treatment since even the ones in service aren't treated meaning its intended to not have it.Give it some time. I have a strong feeling that J-35A was rushed to be shown in public before everything is finalized. The only quality photo so far is the one you replied to with panel and doors seals. All earlier photos are of half finished product that does not reflect the final product. Maybe you will see the edge treatment in later photos just like the door sealings.