With cloud storage, only data of various types is stored. In principle, this is the same as saving important documents, media files, etc. on an external hard disk. However, unlike an external hard drive, the cloud can be accessed wherever you are using the internet.
In addition, using the cloud for backups means that it's not only files that can be backed up, but also complete system statuses in different versions. This means it's possible to reset a server to a previously secured system status at any time after there's been a security issue or an IT system malfunction. This allows you to quickly restore to a secure and stable operating state.