I keep the domain match rule as "Starts from" in the global setting not because of this (and I realized it was a good choice more now) but because BitWarden automatically sends basic auth if there is only one match, meaning you never get any prompt to begin with, which is handy but having the default "Base domain" can make the match broader and asks me for basic auth and since an extension can't fill that space probably due to browser extension API, I have to copy / paste which is very tedious.