NixOS minimized configuration with weird networking issues

bad-configuration.nix

{ config, pkgs, lib, ... }:
let
  dbus-sway-environment = pkgs.writeTextFile {
    name = "dbus-sway-environment";
    destination = "/bin/dbus-sway-environment";
    executable = true;
    text = ''
      dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=sway
            systemctl --user stop pipewire pipewire-media-session xdg-desktop-portal xdg-desktop-portal-wlr
      systemctl --user start pipewire pipewire-media-session xdg-desktop-portal xdg-desktop-portal-wlr

    '';
  };
in {
  imports = [ # Include the results of the hardware scan.
    ./hardware-configuration.nix
  ];
  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  #boot.kernelModules = [ "nouveau" ];
  boot.kernelParams = [ "modprobe.blacklist=dvb_usb_rtl28xxu" ]; # blacklist this module
  boot.extraModprobeConfig = '' options bluetooth disable_ertm=1 '';
  boot.kernelPackages = pkgs.linuxPackages_latest;
  #boot.blacklistedKernelModules = [ "nvidia" "nvidia_uvm" "nvidia_drm" "nvidia_modeset" ];

  networking.hostName = "blahaj"; # Define your hostname.
  networking.networkmanager.enable =
    true; # Easiest to use and most distros use this by default.
  # Set your time zone.
  time.timeZone = "Europe/Prague";

  hardware.graphics.enable = true;
  services.xserver.videoDrivers = [ "nvidia" ];
  hardware.nvidia = {

    # Modesetting is required.
    modesetting.enable = true;

    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
    # Enable this if you have graphical corruption issues or application crashes after waking
    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
    # of just the bare essentials.
    powerManagement.enable = false;

    # Fine-grained power management. Turns off GPU when not in use.
    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
    powerManagement.finegrained = false;

    # Use the NVidia open source kernel module (not to be confused with the
    # independent third-party "nouveau" open source driver).
    # Support is limited to the Turing and later architectures. Full list of
    # supported GPUs is at:
    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
    # Only available from driver 515.43.04+
    # Currently "beta quality", so false is currently the recommended setting.
    open = false;

    # Enable the Nvidia settings menu,
	# accessible via `nvidia-settings`.
    nvidiaSettings = true;

    # Optionally, you may need to select the appropriate driver version for your specific GPU.
    package = config.boot.kernelPackages.nvidiaPackages.stable;
  };
  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.emil = {
    isNormalUser = true;
    extraGroups = [ "wheel" "docker" "input" "plugdev" ]; # Enable ‘sudo’ for the user.
    packages = with pkgs; [ tree any-nix-shell libreoffice-qt gimp spotify discord bottom];
    shell = pkgs.fish;
  };

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;

  system.stateVersion = "23.05"; # Did you read the comment?

  environment.systemPackages = with pkgs; [
    flameshot
    firefox
    chromium
  ];

  programs.sway = {
    enable = true;
    wrapperFeatures.gtk = true;
    extraPackages = with pkgs; [
        swaylock
        wl-clipboard
	mako
	wofi
    ];
  };
  nixpkgs.config.allowUnfree = true;
  programs.fish.enable = true;
  programs.fish.promptInit = ''
    any-nix-shell fish --info-right | source
  '';
}