How do small SaaS teams prevent production release failures?

After 15+ years managing production releases in enterprise environments, one thing that always surprises me is how differently startups handle deployments.

In large companies, production releases typically require things like:

• release readiness checklist
• rollback strategy
• Go / No-Go decision
• deployment communication
• post-release verification

But when I talk to founders or small dev teams, deployments often look more like:

push code → CI/CD runs → deploy to production → hope nothing breaks.

I'm curious how people here manage production deployments for their SaaS products.

Do you have a defined release process or is it more informal?

I’m also considering offering a simple Release Risk Assessment where I review a team's deployment process and highlight potential failure points before major releases.

Would something like that actually be useful for small SaaS teams?