What approach to use when rolling back a production version?

Question

Backup

The project will be launched very soon and I would like to protect it from fails in the future!
Since the percentage of users is planned to be large, what is the best way to roll back the product version in the prod(web)?
Set up backups on hosting?
We need an option when the rollback should occur as quickly as possible (for example, at 9 am a bug was discovered, at 9:30 successfully rolled back to the old version)
Prod versions are planned to be updated every 2 weeks.

Answer 1

Oh wei strange want.
Set everything up in 3 approaches
1. Development - a test base so that it doesn’t take long to do something
2. Testing - a test base so that it doesn’t take a long time to do something, but so that your testers can still bring you to white heat
3. Test for
hamsters - a combat base, but users who agreed to research (Well, I don’t know, offer them an achievement or discounts)