I like to have consistent architecture across all my services, and I like to see and configure everything in (mostly) one place. If you're running a single go binary, sure do whatever, but if you're running a go binary, and a *arr stack, and a bookmarking service, home assistant, frigate, etc, it gets out of hand pretty quickly.

You trade a bit of upfront setup (I mean barely now in the age of LLMs) for easier automation and flexibility down the road. I use docker compose to run my local dev stack and qa envs, but then can do whatever I want with the containers for prod. Google Cloud Run, Amazon, whatever. Right now I do just actually use docker compose behind nginx in prod, but I've used basically the same docker compose setup for all my projects that aren't large distributed systems in the last 10 years. And when the system gets too big, I refactor it into k8s, but k8s is overkill for like 99% of my personal projects and like 75% of my professional projects.