That's just one example of the many benefits of having extra RAM. If you don't need more than 6GB of RAM then more power to you.
The Thunderbolt port now allows the iPad to be used with high speed external storage and even a dock, meaning peripheral use that is closer to a Mac than ever before.
If I understand correctly the 2020 can only mirror output to a screen (with bars on the side), not extend it.
I don't think the 2020 iPad Pros can do this:
I'd been holding out for exactly these issues to be resolved before jumping in, and now I'm good.
To each their own, though.