Actually 123ab's patch allowed emuNAND to be updated to 11.8 with an additional patch to fix eShop compatibility iirc. As it stands, eShop gets borked on 11.9 and there is no fix at this point in time. However, it appears everything else is working fine.
So pretty much the 3 options are:
- B9S (with Luma) + 11.2 emuNAND for GW
- B9S (with Luma) + converting saves
- Find 123ab's patch and get GW 11.9 but sacrifice eShop until further notice
Quite frankly, if you are already having this much trouble even identifying any of the 3 aforementioned options to begin with, perhaps it would be a good idea to listen to everyone else and choose the easiest path i.e #2 with save conversion. #1 and #3 are for people who know what they are getting themselves into, hence why they are not the first recommendation.