Earlier quoted context omitted.
In my EU-centric worldview, the US system of at-will employment, and of two-week notices as the standard courtesy, is crazy. Three months is the typical notice period for tech workers and other highly-skilled jobs. One month is the legal minimum in Sweden, and certainly several other countries. Of course it goes both ways, in fact it's even more difficult for the employer to get rid of an employee. An employee doesn'…
In reality, you can walk out of any job in EU as well. Unless you have some specific clauses in your contract, the worst they can do is simply not pay you anything. There may come a lawsuit after, but I doubt it. You can also get a doctors note and go on sick leave if you feel some serious stress on the job.
If you don't respect your notice period they'll remove your salary over the missed time from that final payment. So in that case they'd remove 3-month salary. Sometimes it goes into the negative, and some companies actually send a bill, but there's basically no consequence for ignoring it. Usually companies don't push the matter.