Whole world is using containers. No sudden deprecation will happen, things are fairly predictable. Large community out there to learn from. If you enter the world of containers you’ll not be alone. Many applications available in container landscape.
Although with ERPNext + Containers you may feel alone, I do get many self-hosted success stories related to containers. Success stories don’t even make it to forum or issues! If container builds stop, or helm chart doesn’t get bumped, I’ll get issues on github suggesting active usage.
It is a great tool for developers to boostrap development as well!
Only requirement is you should know about containers or have an open mind to learn about containers.
Small container community here will keep them optimized and running for future.