Use this tool to debloat your windows: https://github.com/builtbybel/privatezilla , also, I heard that setting your region as English (International) during installation comes with less bloat-ware installed?
Also, lookup tutorials on how to Dual Boot.
EndeavorOS;
Gives the benefit of having latest up-to-date packages for gaming, while negating the downsides of having to configure the OS or graphics driver upon installation.
Honestly, if think EndeavorOS comes with full UI support to download stuff from AUR and Flathub, I think it would become a pretty solid OS for any casual user looking to get into Linux. (Well, unless they are religiously against Arch. Then again your casual user probably don’t even know what ‘Arch’ is or care enough to be religious about it.)
Also yea, usually you run Ubuntu LTS or Debian Stable on servers unless your company paid for some licensing.