For those who aren't sure what a "package manager" is, it's a special part of Linux that usually comes pre-installed with the ...
A Raspberry Pi multiboot lets you pick Raspberry Pi OS, Ubuntu, or MX Linux at startup without changing SD cards.
LibreOffice is free to download and install for Windows.
Sometimes, a somewhat obscure Linux distribution might be just what you're looking for. Is either CachyOS or Nobara the one?