Originally both the engineering manager and project manager were based in our office. The engineering manager moved to the overseas office a few years ago. This year the project manager moved to the same overseas office. I was asked to step up and supervise the other engineers.
I'm not a proper PM, just the senior dev who keeps an eye on the others to make sure they aren't falling down any rabbit holes.
I would much rather be a developer than a manager but I guess I thought I could still be involved in all projects from a technical standpoint.