Congrats! Welcome to the privacy war.
Over nice thing about Nextcloud files is you have terabytes for next to nothing pet month, if you self-host in your basement.
If you put it on a VPS, it cost to...
I've been using davx5 for a few years to keep contacts synced b/t phone, umbrel, and laptop, which has been helpful. Once all this stuff is moved, consolidated, organized, I hope to get Nostr VPN going.