If you want to be able to use “actual streaming services like Netflix”, you’re gonna be disappointed. Those use DRM that won’t be available to your Pi. Most of them will at least limit the quality to a pretty pathetic level. Overall it’s not going to be a satisfying experience. AFAIK it takes some major hackery to get around that limitation, making it a practically insurmountable obstacle.
Otherwise the rest are more than doable. I’d still recommend an x64 based mini pc though.
Keyboards have two layouts: a physical layout and a logical layout. The physical layout defines what the keyboard looks like, and the logical layout defines what signal each key sends to the computer. Qwerty is a logical layout, ISO and ANSI are physical layouts. Qwerty keyboards exist commonly in both ISO and ANSI layouts.