I also have a Synology NAS and second this.

Yes, it’s super cool to selfhost a NAS yourself, but I really just want my storage to work and not need to be tinkered with at all. I’d be mauled by the missus if something was to happen to my AIO-server/NAS, so I’d rather split them.

Let a professional company deal with keeping your storage online at all times, and have fun with the “not so important” things like docker containers on your own server.
It costs a bit more, but it gives me peace of mind.