Interesting to see someone writing a blog post and explaining issues they've encountered with their laptop, I participate in the official repository of Nix configurations covering these kinds of hardware quirks [1].
I also have a InfinityBook Pro 14 Gen 9 (Intel Version) and began adding support for this laptop in NixOS Hardware in early March of this year, including settings sane defaults, loading drivers, and even refactoring/backporting modules for other InfinityBook versions.
[1]: https://github.com/NixOS/nixos-hardware/tree/master/tuxedo/i...