In essence there is no difference in installing arconet, arcopro or arcoplasma.

They all give you the same options in the Calamares installer. All you have to do is choose.

If you do not know what to choose as bootloader then choose Grub. We have been using Grub for the last 6 years.

Easy: what you see is what you get – minimal Plasma

Advanced: Install the full plasma + Hyprland or Wayfire and all the apps