things I have installed:

full KDE Plasma 6 setup     # not essential for sure
    which can provide:
        SDDM theme          # Breeze is enough
        kcalc/kalc          # calculator(s), what's the difference?
        kcolorchooser       # or hyprpicker
        pipewire & friends
        ...

# hypr*
hyprland
hyprpaper
hypridle
hyprlock
hyprshot
hyprpicker
hyprland-plugin-hyprexpo    # scale workspaces and put them in a grid

# xdg-desktop-portal*
xdg-desktop-portal
xdg-desktop-portal-kde      # Dolphin as file picker (for firefox, change value of widget.use-xdg-desktop-portal.file-picker in about:config if not working correctly)
xdg-desktop-portal-hyprland # not working with my Intel iGPU, but fine with NVIDIA dGPU

# terminal emulator(s)
kitty       # normal terminal
ghostty     # floating terminal, for btop for example

# under surface
mako            # notification daemon
gnome-keyring   # --password-store=gnome-libsecret
wl-clipboard
cliphist        # clipboard history
slurp           # region selector
wf-recorder     # screen recorder
brightnessctl
playerctl
pamixer

# GUI
waybar
eww
wlogout
rofi(-wayland)
mpv
network-manager-applet  # nm-applet
blueman                 # bluetooth GUI & applet
pavucontrol
gnome-text-editor       # or kwrite, just notepad replacement
btop                    # system monitor
activate-linux          # :/
polkit-gnome            # polkit authentication agent

# fonts & themes
maplemono-nf-cn / ttf-maplemono-nf-cn-unhinted (archlinuxcn)
ttf-font-awesome
ttf-meslo-nerd
ttf-jetbrains-mono-nerd
spicetify                   # spotify tweaks
spicetify-maketplace        # spotify themes
nwg-look                    # theme of GTK apps
catppuccin-gtk-theme-mocha  # theme of GTK apps
kvantum
qt5ct
qt6ct

# utils
bc
jq