I picked up a change that had broad consensus and quite a bit of excitement over even by some core devs.
That ticket now just sits there. The implementation is done, the review is done, there are no objections. But it's not merged.
I think something is deeply wrong and I have no idea what it is.
Looking at your PR, the ticket is still marked as Needs documentation: yes Patch needs improvement: yes
If this is done, you should update it so it appears in the review queue.
Have you tried pinging in the Discord about it?