Most soy sauce contains gluten and almost everything contains soy sauce. So, it’s actually somewhat difficult if that tiny amount causes issues. The good news, though, is that food labeling laws are pretty good for stuff you buy yourself, so looking for 小麦 on labels to avoid them works. A lot of people do struggle, though. Most of the Japan-focused subreddits never moved over here, but they do contain threads about the topic as well if you search.
Most soy sauce contains gluten and almost everything contains soy sauce. So, it’s actually somewhat difficult if that tiny amount causes issues. The good news, though, is that food labeling laws are pretty good for stuff you buy yourself, so looking for 小麦 on labels to avoid them works. A lot of people do struggle, though. Most of the Japan-focused subreddits never moved over here, but they do contain threads about the topic as well if you search.