Is that 5% number real or your estimate?

It's a hand-waved estimate, but let's recognize that Apple actively plans on killing support for NAS targets for Time Machine:

> Time Machine backup to NAS devices over Apple Filing Protocol (AFP) is not recommended and won't be supported in a future version of macOS.

AFP is what's deprecated, not Time Machine over networks. They just want you to use SMB.

	▲	roadbuster 8 hours ago \| parent [-]
		Acknowledged. Thanks for pointing that out.

hughw 9 hours ago | parent | prev [-]

But that's AFP, not SMB. SMB is the future. [edit, that sounds sad].

	▲	9 hours ago \| parent [-]
		[deleted]

Yeah, it sounds a bit high to me.