If that is the case, the developer should have likely noted otherwise before closing the issue as the final piece of discussion. That is good to know that your experience hasn’t dropped the OS into base Windows 11. If as you say is true, the developer should also really spend some time cleaning up the README and clarify that base Tiny11 can actually be updated in-OS. I will still test in a VM later today to confirm that Tiny11 doesn’t actually erode or degrade on update for myself.
Tiny 11 comes in two variants:
Tiny11 Core is not suitable for use on physical hardware as it outright disables updates. It’s best used for short-term VM instances.
Tiny11 also has problems with updates. The advantages gained through Tiny11 will erode with applying Windows updates. The installer is more tolerable than Windows 11 by not forcing an online account (but still needing to touch telemetry settings). Components like Edge and One drive will inevitably rebuild themselves back in with cumulative updates. If this is something that coerces you to not update your system, don’t subject yourself to using Tiny11. Additionally Tiny11 fails to apply some cumulative updates out of the box, which could be a further security risk.
I recently tested the main Tiny11 in a VM based on a different user recommending it in a now deleted thread. I was skeptical knowing the history of Tiny10 onward that 11 would actually be able to update properly, and NY findings backed up my initial skepticism of functional updates.