ObsidianOS is a set of Linux distribution based primarily on Arch Linux. Its main feature is an A/B partition style (as used by Android or Chrome OS) so if an update causes some issues, it is possible to reboot into the first partition and restore the second one. It uses the ext4 filesystem exclusively. ObsidianOS offers three variants of the product - "Base", "KDE Plasma" and "COSMIC".

Linux 6.19 brings native Vulkan support to older AMD Radeon GPUs, hardware-accelerated HDR via the DRM Colour Pipeline API and ext4 speed boosts.

You're reading Linux 6.19: 40% Speed Boost on Old AMD GPUs & Faster Ext4, a blog post from OMG! Ubuntu. Do not reproduce elsewhere without permission.