com.valvesoftware.Steam.CompatibilityTool.Proton VS steam-for-linux

I think you are using Steam Flatpak, right? In which case, you're hitting this bug. These games use Microsoft's Media Foundations, and the videos can't play because the proprietary codecs are missing.

The major issue people are having right now is also why Silverblue isn't the "present" of Fedora - namely, Flatpak still has some missing features which lead people to install RPMs instead. RPM-OSTree is a crappy experience for package management - but the solution will be in Flatpak's continuous improvement. Regardless, I have only layered Chrome (and the Fedora Workstation Repositories that provide Chrome) and otherwise I've found that Flatpaks work fine (Steam works fine with the right Flatpaks - just install the community Proton flatpak).

It seems that he is using the version of Proton that is installed from Steam and that is why it gives him failures, he has to use the version of Proton Flatpak if you use Steam Flatpak.

They are fixing MFPlat. Transcoded videos are a fallback. They had a built in local transcoding option (media-converter) but that got dropped as it was causing issues. They are working more towards using local gstreamer/ffmpeg support so they don't have to distribute the codecs. Because there are issues with Codec's and patent blocking and stuff. (https://github.com/flathub/com.valvesoftware.Steam.CompatibilityTool.Proton/pull/48)

If you are running steam via flatpak you need to use this version of proton for anything newer than 5.10

Proton 5.13 introduced sandboxing using Valve's pressure-vessel that wouldn't stack with Flatpak. Users had to install one of the Proton community builds from Flathub (Proton, Proton-Experimental, Proton-GE) or stick with older upstream releases.

Anyone else noticing this? I don't believe I'm going insane. For a while now my download speeds, regardless of chosen server, are always slower in the Linux client compared to in Windows. Is the only appropriate place to post about this here -> https://github.com/ValveSoftware/Steam-for-Linux ? Would be great to know that I'm not the only one being affected.

https://github.com/ValveSoftware/steam-for-linux/issues Its seems to be a problem happening only to Nvidia GPUs. Not only Mint but many other distros A temporary solution is to open Steam from the Terminal using "steam -vgui"

I just spent a few hours working on that problem that Steam takes very long to appear. I did not have xdg-desktop-portal-gnome installed, and Steam is the only application that has that problem, so it's not the one from the update forum post. What my (and probably your) problem is, is this one: https://github.com/ValveSoftware/steam-for-linux/issues/9780. Some bug where CEF gets stuck in a loop. When I executed steam --reset an error about steamwebhelper and glibc appeared like 50 times, each taking a few seconds.

Hey I had the same issue - are you running this on Linux? On my arch machine I had this problem and was able to resolve it via the advice in this thread: https://github.com/ValveSoftware/steam-for-linux/issues/9640

might be related #9805

Steam crashes at launch with libgudev 238 · Issue #9805 · ValveSoftware/steam-for-linux

Relevant open issue from 2014: https://github.com/ValveSoftware/steam-for-linux/issues/3372