Personal local NAS (Network attached storage).
Or install Tailscale on your home computer if it's always on.
I'm a Linux nerd but I use Tailscale just because of how incredibly easy, secure, and reliable it is. And it's free obviously.
Can access your files anywhere from basically any device. It essentially just lets you have access securely to any of your devices as if they were sitting on the same home network.
I got rid of cloud storage and just run a NAS with unRAID (paid but not a subscription. But worth every penny imo) There are alternatives that are free though.