Hi there, our team is using Qovery now for quite a few weeks - a specific feedback they gave for improvements was a better naming of URLs on preview apps:
On Heroku preview apps were following a certain pattern, referencing the pull request:
Hi @a_carrano, we would like to move our preview environments under our domain with Cloudflare. If we go ahead with the process you described would it break all existing CNAME links in the cluster?
Sadly no, this kind of heavy change is going to create downtime.
The more controlled way to do it, is to create a new cluster (with this settings), duplicate your projects/environments to it. Once everything is ready, update the cname/custom domain and re-deploy.
But even in this case, there will be some downtime/inconsistency during some period of time.