Not who you’re replying to but yes, Synology will let you automate backups to a cloud/service (and you definitely should!)
Y’know, if he hadn’t fired all of his staff for this kind of thing then someone could’ve told them this is going to get meme’d to “ex” in about 0.06482 seconds. Oh well, time to grab the popcorn!
Is that even possible?
Bottom line, there’s always a possibility a cloud/service provider could lose you data. That chance is (/should be) exponentially smaller on their environments however than the likelihood of your own local stores.
If you’re really serious about preserving your data, consider the 3-2-1 Backup Rule:
3 copies of your data 2 different types of media 1 copy stored off-site