While I agree Scrum and agile are overkill and somewhat performative for the managers. I also like how OP gets that being an effective manager means understanding what the engineers are doing, as in, you rose through engineering into management, which is also a good thing!

But some teams, and some people, and some work is more effective with regular scheduled human interaction. People who need direction, guidance, or just to feel more physically connected with their work and team.

I'm so glad you are able to remove all "live human interaction" from your management style. I'd miss having a boss that felt like I was worth face-time. This feels like going too far for async work, I don't know how you wouldn't feel disconnected.