Backup data across devices and os

Software, Cloud and Development Software & Tools
1

I use multiple devices -

  1. MacBook (work)
  2. Linux (home server)
  3. Windows 11 PC (gaming and media)
  4. Android mobile

I like to backup all my data. Currently using Google Drive to store documents (pdf, txt, notes, bills, invoices), photos, ebooks and Keepass crendential store. I have subscribed to 100GB paid feature.

Tools -

  1. MacOS and Windows has native gDrive client.
  2. Linux - Insync. Paid tool
  3. Android - While android has gDrive client, I sometime need shared folder, so I use AutoSync. This is useful sync local files in mobile to cloud. Use it to sync Obsidian notes.

What is your current backup strategy across systems and os?