> Does "working class" have a different meaning today?

It’s always had multiple meanings depending on context. Working vs capital class, wealth/income-based, job-based.

Being British, class here is tied strongly to your birth. My dad rents out multiple properties, I earn a good living as a software engineer. However we’re both working class because we were born working class. No amount of money can buy our way into the upper echelons of society because our accent will shut those doors.