This is finally the big bump silent tactile from Lichicx. This is their Holy Panda inspired bump, although if you've tried them out they feel pretty similar to Momoka Shark bumps. There is a little bit of leaf noise as you would expect in nearly all big bump tactiles and is always more noticeable in silent switches, but it's not too bad and could probably be solved with a thicker lube in the bend of the leaf.
