As Peter Cohen says, cloud ☁️ is the answer. Period.
I still think that Apple is leaving a hole by discontinuing Time Capsule, but network-based backups have become less important for many people as they’ve grown to rely on the “cloud” to take care of everything. Of course, I’ll argue separately that your data is your responsibility to keep safe, and that you should make local backups and backups to the cloud to be safe, but I admit that I sound more and more anachronistic by the day. For most people, the way they do it now – or the way they perceive their gear to work – is good enough.