There is this post from three years ago here that mentioned LLPM isn't supported on nRF5340. The answers had mentioned some issues with LLPM on the network core & that the issues are "currently being worked on" and may be resolved eventually. I was wondering if these problems were actually addressed eventually.
Now, it seems that I can't have CONFIG_BT_CTLR_SDC_LLPM=y when using the nRF5340. So, I can't even increase the LLPM connection interval to >= 2000 us, for example.
Was there ever a workaround that was reached, or is LLPM completely out of the question on nRF53?