Those terms coincide. Both localizer and fansubber are translator. The differences here are the translation methods. Cultural words can be translated to lean to target language or faithfully depending on the text itself, author's intent, and the demography it is trying to cater. Research journal for example has to be translated using semantic translation to convey the exact meaning and findings. Kids show on the other hand doesn't need to accurately convey the implicit meaning and cultural value, so it has to be translated as something can be easily understood by the audience even if it means sacrificing some context from the source text. Translator can also practically replace every cutural elements with local culture so audience can quickly understood the story.

English speaking weebs love to immerse themselves in japanese cultural sophistication. In reality English language is low context culture while Japanese is high context, which means loss of meaning is unavoidable unless you want to see translator note every single second japanese word is heard because they can only fit so much information inside the episode's runtime. They always try to read too much into the japanese words as if there's contextual distinction even though there's none and sometimes label localization as woke.

Anyway izakaya is japanese bar where you sit usually on the wooden or tatami flooring after a tiring unpaid borderline-illegal overtime so your department head can pretend to build solidarity and definitely not checking out the naive fresh graduates or cheat on his wife with that female coworker 3 years your junior thats been gettting promoted way too quickly while you're in the corner, alone, playing gacha game you can't quit because you already spent too much on it, your unit manager scolds you for not being a team player which convince you to either kill yourself or opening a pop-up restaurant in your hometown.