Given the nature of Steam and previous executed data extraction, I'm scared installing and running niche/indie games now. Windows lacks
A unified GUI framework hasn't happened yet, not between OSes, nor really within each OS ecosystem. I'm not hopeful about leaps in native interoperability in that regard.
Web tech interoperability is so established and widely used, packaging and running those natively seems much more viable than any hope for supposed native long term efforts.
Not everything will be covered by web tech. But for many things, it's already viable, and exploring native integration of these web technologies is interesting.