In any case, looking again the poster's original photos, the front of the projector housing is definitely different than that of both our 4runners, and would imply that an upgrade to the new LED headlights would require a new 2021 headlight housing.
Indeed it appears that the original halogen projector lens is certainly re-used otherwise why would they have put a shroud around it with a slight awning look at the top. Seems they spec'd a specific LED bulb, highly focused presumably but stayed with the parts bin everywhere else. The illumination however coming out of that original projector designed for wider halogen shine is likely the reason for that black ring there so the LED is focusing the same and providing the same throw down range... that's what I see.
But - if the price for the whole assembly is similar to what they are now (reasonable) I'd consider it to match my OEM LED Fogs installed so we shall see what transpires here I guess once the first person attempts this (presuming there isn't additional wiring logistics involved too). They probably know it will be a popular set of parts.