Mac pro Montery 12.76 able to run Deluxe 2024
No.
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-mac-software/00/25609
If your OS cannot meet the system requirement and cannot be upgraded, you can use online software.
No. TurboTax 2024 is not compatible with any OS prior to Ventura 13 or later.