If you want to check the software engineering salaries in Europe, you can go to this page:

https://techpays.eu/countries/netherlands (Right now, it only has Netherlands)

The owner of the project is Gergely Orosz. He likes to talk about salaries on his Twitter account: https://twitter.com/GergelyOrosz/

One of his tweets that contrasts the salaries in Europe vs US is this one: https://twitter.com/GergelyOrosz/status/1424751510995406850

I also made a similar project. It has mostly the salaries data in Indonesia, but there are few salaries data in Singapore and US. This is the project: https://predictsalary.com/salaries