One of the two recommended oils by BMW for this engine in the US are full saps, and most dealers until very recently fill every car with LL01FE. There’s no need to fear or avoid full saps as no one has ever demonstrated increased valve deposits (difference in engine and PCV dominate). BMW only fills M engines with full SAPS in the US to this day. RoW has GPF and that’s the reason all new specs are mid SAPS.I decided on the Mobil 1 ESP LL04 only because the oils recommended by BMW were not full saps. I thought hat I was closer to what was recommended by not going full SAPs. Probably the wrong choice for wtty as you pointed out but good for the engine. I have found oil spec sheets for BMW that show LL04 for the B46, but those are likely outside on NA.