I worked for a company that measures developer's output in number of commits, PRs created and approved, and Jira tickets per sprint. Management doesn't even insist on that the tickets have any kind of an effort estimate.
It can be pretty depressing, until you learn how to game the system - create tickets for yourself that are tiny amounts of work. I hear that it's getting harder to do that, because management is looking more carefully at tickets generated and it looks like they'll start having developers assign points to their tickets before the tickets are added to the sprint