Online vs Desktop

When using TurboTax Online,  can we opt to save the tax data file (.taxyyyy) locally  and not save data in the cloud?  It would be really nice to have it use a locally saved .taxyyy  file instead of storing information on your servers.

How does one go about filing an amendment (if needed) using the online version? (How many previous years are available via Online?

 

With upcoming changes for Windows 11,  I may be forced to use online vs Install version at some point (Unless you finally decide to come out with a Linux desktop version).