I think /* */ single-line comments is a pretty good indication.

> no one uses gemma 3 in prod anyway.

Umm, we do. It's still one of the best for eu countries support / help chatbot style. It's got good (best?) multilingual support ootb, it's very "safe" (won't swear, won't display chinese characters, etc) and it's pretty fast.

Gemma3 is probably the best supported fine tunable model.