Rebuilding configuration from scratch step by step on a new Hassio installation

Since I cannot find the reason of the instabilities I’ve been facing for months, I’ve decided to flash a new sd card and start from scratch

I had backed up the config folder

I tried restoring a partial snapshot, by selecting only “configuration” but my automations and configurations.yaml files were unchanged; am I misunderstanding what the configuration in a snapshot means?

Then I restored the configuration.yaml and automations.yaml manually, but I soon realised I was missing the input numbers, is there a way to restore them?