We did the same. Switching was a cinch honestly - the only thing that screwed me up was some dumb page that returned a bunch of nonsense I was supposed to do to my docker-compose.yml file to make it more compatible with podman-compose. I spent a couple hours trying to figure out why things weren't working, until I finally rolled back all the stupid suggested changes, and my app fired right up.
The only impactful difference I've noticed so far is that the company is moving to an artifact repository that requires authentication, and mounting secrets using --mount doesn't support the env= parameter -- that's really it.
I treat podman like I did docker all day long and it works great.