I think the lead time for the MYP being “late 2022” means RHD MYPs will likely only be produced in Berlin (from Q4), so that will likely also be roughly when RHD MYLRs will start production there, or maybe slightly after. Also, this is dependant on current world problems, which could easily put things back by 3-6 months, so could easily be over a year until we see 4680 MYLRs here.
I guess Tesla are willing to make slightly less on the MY in europe for the short term, as they will be making a lot more on them in the medium and long term once they’re made in Berlin. M3 however, will still be manufactured in China for a long time yet, and continue to give them smaller margins in europe.