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)
        kcolorchooser       # works smoothly on hyprland
        pipewire & friends
        ...

# hypr*
hyprland
hyprpaper
hypridle
hyprlock
hyprshot
hyprlicker                  # kcolorchooser also works though
hyprland-plugin-hyprexpo    # scale workspaces and put them in a grid

# xdg-desktop-portal*
xdg-desktop-portal
xdg-desktop-portal-hyprland # not working with my Intel iGPU, but fine with NVIDIA dGPU
xdg-desktop-portal-gnome    # not necessary maybe, but just in case
xdg-desktop-portal-gtk      # required by nautilus for file picker

# 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
network-manager-applet  # nm-applet
slurp                   # region selector
wf-recorder             # screen recorder
brightnessctl
playerctl
pamixer
qt5ct
qt6ct

# GUI
waybar
eww
wlogout
rofi(-wayland)
mpv
blueman             # bluetooth GUI & applet
pavucontrol
nautilus            # file manager and file picker
sushi               # "Quicklook" for nautilus
gnome-text-editor   # or kwrite, just notepad replacement
btop                # system monitor
activate-linux      # :/
polkit-gnome        # polkit authentication agent

# fonts & themes
maplemonol-nf-cn
ttf-font-awesome
meslo font                  # I installed it manually
spicetify                   # spotify tweaks
spicetify-maketplace        # spotify themes
nwg-look                    # theme of GTK apps
catppuccin-gtk-theme-mocha  # theme of GTK apps

# utils
bc
jq