AppImages
What are AppImages? Just watch Distrotube's video about it:
It's basically a distro independent solutions for running programs on Linux systems. It's not another package format like deb or rpm, but a single file that contains everything to run that particular software.
Standalone programs
LibreOffice
It's very nice to have AppImage support for such a major FLOSS software.
LibreWolf
It doesn't work for me on Artix, but you can still check out the releases page for AppImage.
Collections
AppImagesHub
This is a collection site for various software. Definitely install AppImagesLauncher, which can help you run programs without making them executable and make a .desktop file, which automatically adds any program to the menu.