> For someone using consumer technology on a consumer laptop
Mounting an SMB share on a Synology NAS to use as a Time Machine backup target is not what most users would consider "consumer technology."
Mounting an SMB share on a Synology NAS to use as a Time Machine backup target is not what most users would consider "consumer technology."
Your umbrance is with Synology, not Apple.
Apple raised security default configurations in Tahoe. That led to a config breakage with NAS devices which rely on relaxed security configurations.
I agree Apple should publish a technical note / changelog of config changes such as this one, but Apple has never implied to users they'd carry a support burden for any/all third-party hardware vendors. To the contrary, they've notified users that you're meant to consult with your NAS vendor for configuration steps:
> Check the documentation of your NAS device for help setting it up for use with Time Machine
I was just replying to your point that a Synology NAS "is not what most users would consider 'consumer technology.'" It's firmly in the consumer technology category.
The consumer NAS business is large. These are popular items with average consumers who understand the importance of backups.
It’s reasonable to expect it to work properly.