The information on rates for many people is freely available. I'm more than happy to share my expected salary in the first interview, as the worst case scenario

The information on rates for many people is freely available. I'm more than happy to share my expected salary in the first interview, as the worst case scenario for both of us is if it comes out after an onsite that there's a disparity. Levels.fyi, salary ranges on a large number of employer websites, even glassdoor, will give you a reasonable indication of rates.