Realtime apps on Cloud Run

Hi all, I currently have a meteor app deployed on heroku (on a single dyno). I’d like to migrate away from Heroku. I just got my app working in Cloud Run on GCP (serverless docker containers). I’m also planning on adding real time features to my app soon and I’m wondering if Meteor Realtime features will work well on a platform like Cloud Run.

I ask because Cloud Run may scale up and down containers a lot and I’m not sure how Meteor does it’s realtime features, especially if there are multiple backends. If there are multiple backends, but they’re connected to the same Mongo instance, will realtime features work well? Is there anything I need to consider when scaling a meteor app from one to two backends, especially if there are realtime features involved?