Do all accessories that fit the woom ORIGINAL 1 to 4 also fit the woom GO?

Yes, all accessories that can be attached to woom ORIGINAL bikes (models from 2020) of the same size also fit the woom GO bikes.

Here is an overview of which accessories fit which woom GO:

woom GO 1 BUTLER carrying bag, SURFBOARD footboard
woom GO 1 to 4 VIENNA BELL and BING bicycle bell
woom GO 1 PLUS up to 4 LEGGIE side stand, CYCLOPE bicycle lights
woom GO 2 to 4 SNAP clip-on mudguards, POP children's bicycle basket, GLUG stainless steel bottle
woom GO 3 to 4 PICKUP luggage rack