Same boat as many others. We spend $5000 a month on Heroku. We run production apps and then over 150 review apps at once.

We are using paid dynos but free tier redis and Postgres. With literally a couple entires in redis and a few hundred rows in Postgres.

This is going to massively increase the bills for review apps - with 0 positives and no alternatives.

The hacks, the downtimes, the communication, the support, lack of security features, no innovation.

What exactly is heroku offering these days other than - it will cost you money to move? I can’t imagine any serious business moving to Heroku these days.

You are pushing away everyone you have left.