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Not all distros ship SELinux and the ones that do, don’t actually configure it securely.
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New users are expected to keep copying and pasting commands from their browsers to their terminal which compromises some Linux security defenses.
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KDE, GNOME and Sway are the only functional Desktop Environments/Window Managers that support Wayland all, while the Other DEs are not even close to shipping with Wayland.
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Most if not all of the Linux Distros in 2025 ship with Grub bootloader, which suffers from a lot of problems, instead of using the bootloaders that does not support BIOS and will improve the reliability of booting and provide a more stable experience.
Yea this is a very unpopular opinion.
Convenience issues.
Everyone literally says not to do that, including popular content creators.
Wayland is massive and probably will never actually be finished. Also implementing it basically means rewriting the whole DE (not really but it’s a ton of work).
That’s called “planned obsolescence”.