The bypass is announced to be opened next week (2022-11-01). The B88 through road has already been replaced by the bypass in the
mauttabelle (toll road list). I could easily move the road - and will likely do it soon - but I don't know what happens to L2391. Will it be extended onto old B88 to the east or to the west or will it stay as-is?
https://travelmapping.net/hb/showroute.php?r=deuth.b088&lat=50.753916&lon=11.503533&zoom=16Either wait for a field check or
official map update which usually happens once per year in May.