I’ve always wondered, and guessed it comes from consoles or maybe a Japanese thing, why is it called Title Update? What other kinds of updates do games get?

Although not in this case, often it would also be clarified that it was a free update. Do people pay for game updates? For me an update is the same as a patch, mainly fixes, sometimes new stuff. Then you have expansions/add-ons or DLC that are mostly paid.