Not only in management. After some recent interviews I did, I'm finding more and more companies looking for "lead developers" and "tech lead" or some variation,

Not only in management. After some recent interviews I did, I'm finding more and more companies looking for "lead developers" and "tech lead" or some variation, but what is actually expected of them is a "almost-senior developer that also interviews", since someone else (often a CTO) will be micromanaging the team's tech decisions and another manager will be, well, managing. It is a bit funny to ask "so what's the difference between this role and that of a senior engineer in the same team" and getting people to freeze.