this post was submitted on 03 Jan 2026
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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My best guess is that it's not a Flatpak permissions issue as others are claiming; the software is just trying to use your iGPU (which is usually crappy) instead of your dGPU.
Try taking whatever command you use to start the program and tacking
DRI_PRIME=1on the front. This has often worked for me on applications regardless of whether they're native or Flatpak.