Green card is completely independent of whether you're in the US. You can get one without ever having set foot in the US, and you can live in the country for 15+ years and still not be able to get one.
There's some information online that says if you get an employment-based green card, you must stay at your employer for 6 months after receiving it or else it will cause problems in the future. And others say there's no such rule. Can you clarify if there's any restriction like that and where it comes from?
There's a been a massive jump in EB processing times in the last couple of months, specifically EB3 ROW which is my category. Do you think this quick advancement will continue over the next few months?
Is a green card the equivalent to a first time residence permit in Europe? It's notoriously hard to get a green card: it'll take 3 years for a normal skilled worker who's already in the US and that's assuming nothing goes wrong in the process, and something always does. Plus many visa categories don't even have a path to a green card. "Long term stay visas issued" might be a better comparison.