Would avoid that mate you could get banned! Its never been confirmed if its safe or not to use visual mods Bethesda avoiding answering the question ... I would not use any myself just incase as you lose all content if they ban you!Try this its absolutely fine if your stuck.
download the mod then extract to
"steamapps\common\Fallout76\Data"
then go to
"C:\Users\Name\Documents\My Games\Fallout 76"
open/create "Fallout76Custom.ini"
[Archive]sResourceArchive2List=BurningSpringsAbraxoBriefcaseESP.ba2