I'm still working out exactly what will and won't cause desyncs with registry, although afaik it should just be setting resolution and brightness and scale, as opening the game urself before to do it writes to the registry which can cause a desync. (the only concern is technically scale and brightness will pop up again on first file select, but for syncing reasons this has been edited in manually before loading the game)
It seems like a full encode only takes a few savestates, its usually certain rooms that desync. I'm also testing if the Steam beta for this patch provided by Team Cherry works.
As for the official release, it was made by Kilaye, so i'll talk to them about merging it onto main if its required for rulesets.
lastly the tas was designed with loadless timer in mind, which can be displayed with a modded api on the encode (inputs still sync to vanilla api) this leads to a few strats that are based on the loadless timer, so i'd understand if this wouldn't be submittable to Standard
mostly i was asking to see if it was even reasonable to look into submitting, it seems like it is, so i'll get some more solid answers since i've finished the tas
(a note on the desyncs though, it tends to be due to a floating rounding error or some thing, so for some desyncs you just have to completely restart, even when using savestates)