Entire family is Apple devices, and I actually set up MDM to manage them (ManageEngine's free tier lets you manage 25 devices). WiFi settings, enforced updates, FileVault encryption, etc all managed via MDM policies. Using Cloudflare Gateway (free) for DNS. Sophos XG Home firewall for router/VPN/etc.

I also put a basic 2-bay Synology NAS in the basement, and everyone's laptops are set to back up via Time Machine automatically.