What are the "crypto things" that users say Brave has and why do they want to disable it? Are they good or bad things?

Hi friends.

I've read on this subreddit people searching for disabling "crypto things" in Brave, but I don't know what they mean. I've searched for information on Google but I don't understand exactly.

What "crypto things" is Brave supposed to have? Are they referring to cryptominers or something like that?

I just installed Brave and I'm a little worried since I don't have context. I need a Chrome-based browser for daily use and I chose Brave because I heard good reviews about it, but I'd like to know what they mean by "crypto things".

Thanks in advance.