Thanks for putting this together, it's great to have something that covers backups and restore and operation all in one package.
I'd recommend updating the name to be more descriptive. Anything xDB sounds like it in itself is a database. That's what I was expecting. KubeDBOperator or similar would let us know: it's related to K8s, it has to do with databases, it likely manages deployments with HA/failover/backups.
As other commenters noted as well, you have to click at least 3 times before you understand what the software does based on the above link. Linking to the home page rather than the welcome would be a better choice for those not currently familiar with your project.
Either way, appreciate all the work that went into this project!