Yes, Facebook hashtags work. Hashtags will increase your chances of being found. When you add a hashtag to a post, you are creating an opportunity for potential customers, clients, or followers to find that post. However, you will only benefit from using hashtags if you are posting on a business profile.
However, there is a catch. You have to rely on those people trying to find you. If your audience is not typing the hashtag into the search bar, then they are not going to see your post. Of course, they can discover you in other ways. But people can only find you through hashtags if they are actively searching that hashtag.
That is the same as with any other platform, but the difference is that Facebook users generally are not searching for hashtags. Do you regularly search for hashtags or are you searching for keywords? The answer is probably keywords, whereas platforms like Twitter and Instagram are known for hashtags, Facebook is not there yet.
To compare, Instagram gives you the option to follow hashtags, and Twitter is known for its trending hashtag section. People are actively searching through hashtags on these platforms.
Therefore, feel free to use hashtags on Facebook but don’t overdo it and don’t worry if you don’t have them.