You can use flatseal to change flatpak permissions. It itself is available on flathub.
Linux
From Wikipedia, the free encyclopedia
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.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
I run the Flatpak variant and I am super happy that it only has very limited access to my system.
I do not trust them since this happened some years ago:
https://news.softpedia.com/news/Steam-for-Linux-Can-Delete-Home-Folder-with-rm-rf-470247.shtml
You can always override paths in Flatpak to point to specific host locations.
https://askubuntu.com/questions/1086529/how-to-give-a-flatpak-app-access-to-a-directory
Doesn’t worth the potential data loss or other weird issues in my opinion.
You can access all Steam “payload” in the app directory anyways.
${HOME}/.var/app/com.valvesoftware.Steam/.local/share/Steam
And your game data is in ....../userdata/YOUR_STEAM_ID