Take a look at Minifree Ltd. For less than USD $500, you can get a decent ThinkPad with Libreboot and your choice of Linux distro (KDE Debian is installed by default).

If you switch that drop down that says “Korea” to “All regions”, do you get results? I confirmed that if I switch that to Korea it filters out results.

Well removed, better stop using the distro I’ve been happy with for over a year and a half.

Fedora does the same thing where you can choose between RPM or Flatpak. The only flatpak package I’ve ever had problems with was OnlyOffice, and the issue was that the scaling was blown way out of proportions. Switching to the RPM version resolved that.