I always love seeing modern technology on old hardware. The Dreamcast was an amazing machine in a beautiful form factor.
I even made the simulation of upgrading to 64gb of ram just after I bought it to prove myself that it was the right choice.
I cannot think of going back to buying something I know I'll most likely have to replace entirely after some time because it cannot be upgraded.
Surely it's not supported natively, given that MSIE3 predates the library by a decade.
Here both of those pieces of information are missing on all three questions, so no answers can be given. Any answer to these questions makes assumptions or deductions about those pieces of information.
Maybe they think I'm a narc.