Conversely, we have Oracle suing Google successfully for billions over function and property names. Eventually the Supreme Court overturned the result but how many businesses want a fight that expensive?

It'll be highly dependent upon the type of output it generates.

I've played with it again recently because of the updates around disabling open code and such, and it still strikes me that it's not worth the potential risk.

Even setting aside the "could I get sued for this" question, the value just isn't there; half the time functions are just poorly written, inefficient, or buggy. For very simple actual math stuff (e.g.: a function to replicate any moderately complex spreadsheet function) it seems to work well. It seems to really struggle with common boilerplate stuff like simple HttpServer in Java, Flask blueprints, and so on. It may be bias due to the projects I've worked on, but I don't do a lot of my own implementations of calculating compounding interest rates, incredibly simple array slicing, or testing if a given number is prime.