Taurus OS problems on my MAC

You are better off working through any problems you are experiencing with Mac OS Tahoe.

Downgrading requires that you format the drive to erase all the data on the Mac, reinstall the older OS and finally restore your files from a backup made prior to the installation of the newer OS. Additionally, the Mac’s firmware may also have been updated when the newer OS was installed, potentially requiring you to use another Mac connected to yours to revive or restore your Mac in DFU mode..  

Downgrading is complex and dangerous in a number of ways.

Work through your problems.

Start a thread focused on a single problem at a time, then the users here in the community can give you the best help they can to let work through the issues.

Let us reaffirm the suggestion from our colleague @ D. I. Johnson regarding Downgrading

User Risk Assessment: macOS Downgrade Procedure

Before initiating any downgrade from macOS 26 (Tahoe) to an earlier version such as macOS Sequoia, assess the user’s tolerance for potential risks. The following checklist must be completed before proceeding.

Primary System Dependency

Determine whether the affected Mac is the user’s primary or only computer.

If the user cannot function without this system for several days in the event of a failed downgrade, the risk level is high.

The downgrade should be postponed or avoided until proper contingency measures are established.

Availability of a Secondary macOS System

Confirm that the user has access to another Apple computer currently running macOS 15 or macOS 26 (Tahoe).

This secondary system must be capable of performing a Revive or Restore operation on the target Mac’s firmware if required.

Lack of a secondary Mac significantly reduces the ability to recover from firmware corruption or boot failures.

Firmware Compatibility and Secure Enclave Risks

Be aware that upgrading to macOS 26 (Tahoe) likely includes a firmware update affecting the logic board and Secure Enclave Processor (SEP).

Downgrading to an earlier version (e.g., Sequoia) may introduce firmware mismatch issues, leading to instability or loss of functionality.

https://discussions.apple.com/thread/256132169?answerId=261559734022&sortBy=oldest_first#261559734022

https://discussions.apple.com/thread/256125704?answerId=261544017022&sortBy=oldest_first#261544017022

Backup Integrity and Recovery Preparedness

Verify that the user has at least three complete backups created before the macOS 26 (Tahoe) upgrade.

Implement the 3-2-1 Backup Strategy:

3 total copies of essential data

2 different backup methods or storage media

1 copy stored offsite (for protection against natural or human-caused disasters)

Each backup should reside on a dedicated, single-purpose external drive.

For enhanced backup and cloning capabilities beyond Time Machine, refer to:

🔗 https://bombich.com

Recommendation Summary

If the user answers NO to any of the above questions:

Downgrading the Mac is not recommended.

Proceeding without proper contingency plans, verified backups, and recovery tools may result in:

Data loss

Firmware corruption

Secure Enclave failure

Complete system inoperability

What exactly do you mean? A quick internet search turned up a couple of things. There's Taurus, an "automation-friendly framework for continuous testing".

https://gettaurus.org/

Or this?

https://github.com/pedrocruzlopez/taurus-os

If whatever it is is causing you problems, contact the developer. Or remove it.

D.I. Johnson wrote:

You are better off working through any problems you are experiencing with Mac OS Tahoe.

I posted at the same time you did and didn't see yours. It absolutely didn't occur to me they meant "Tahoe."

Oops.

The 'problem' of files not appearing on the desktop is usually related to the use of iCloud syncing of the Desktop and Documents folders. When the feature is enabled, the files and folders that would normally be found on your desktop or in the Documents folder get moved into iCloud storage and are accessible from that location in the apps that you run on the Mac.

You can manage the syncing of the Desktop and Documents folders by going to System Settings > Apple Account > iCloud > Drive and enabling or disabling Desktop & Documents Folders. If you disable that, then the files and folders will resume their normal place as you have become familiar with.

Please see and review: Add your Desktop and Documents files to iCloud Drive - Apple Support

Let me buy you another cup o' joe! ☕️ 😃

D.I. Johnson wrote:

Let me buy you another cup o' joe! ☕️ 😃

More coffee is always good!