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This Year, RISC-V Laptops Arrive
(spectrum.ieee.org)
This is a most excellent place for technology news and articles.
Once there is Debian support, would it just run all software that Debian runs ie steam proton?
Not in the way you're hoping for. Proton is a wine offshoot, which means it's exclusive to x86 and x86_64 arches. You could perhaps get it to run by installing qemu and setting it up to run x86_64 binaries, but even if that worked you'd likely end up with single-digit FPS in most games.
Based on what Gentoo currently has keyworded, you should be able to get a solid useful desktop—KDE or Gnome (or sway, if that's your preference), Firefox, Libreoffice, Gimp, VLC, and other popular basics—but I wouldn't expect games or other proprietary software for a while yet, if ever.