TurboTax 2024 Home and Business and Monterey 12.7.6

I have a MacPro mid 2015 and it has updated to Monterey 12.7.6. Just bought the download from Amazon and it cant run on my OS. Dumb me didn't get the email from TT.

If I go online with Turbotax, how does my prior year information for 2023 returns get loaded in? I do 3 returns and one is a LLC with his personal return. That is a lot of asset/depreciation info to type in.