Those high salaries remind me of the stories of heavy smokers who didn't die of cancer or COPD. I think it's very unlikely to get those high salaries in Europe. Comparing them to salaries in Silicon Valley without context isn't really smart. I have always tried to see bay area salaries as as risk compensation.

E g. In Vienna/Austria a 2-3 bedroom apartment here is about 1-2k while in the bay area it's between 5-10k. If I lose my job I still have a social net that will soften my fall, while in SV you're on your own and can get evicted from one day to the other. We have a single payer healthcare system while in the US certain health issues can, despite being insured, lead to financial ruin.

That being said my salary was until now always a 5-figure salary. In my upcoming job I will for the first time in my career path get a 6-figure salary which excluding bonuses is 70% higher and including bonuses can be up to 89% higher than currently. It took me quite some while to get there, and I can assure others that jobs paying those amounts don't grow on trees. It requires both talent and charisma, and honestly also luck, to land such a job. Constantly switching jobs and chasing slightly higher salaries definitely isn't the way to go.