Synology works with any hard drive. I bought a new unit and installed WD drives in it. No issues.
They did revert this because of public backlash:
https://arstechnica.com/gadgets/2025/10/synology-caves-walks...
They did revert this because of public backlash:
https://arstechnica.com/gadgets/2025/10/synology-caves-walks...