Games update each time I switch between Windows and Bazzite

I recently set up Bazzite on a separate drive and followed the guide to create a shared Btrfs partition for gaming. Everything seemed to be working fine at first, and I was able to launch games. However, now when I switch between Windows and Bazzite, each game installed in my Steam library has to update before I can launch it. These updates can be rather large, and it seems like for certain games, like Warhammer 3, they have to reinstall the entire game. For that particular game, it's 75GB each time. It was launching fine for a litte while and I don't recall each game needing an update when I first installed it. I'm guessing I made some kind of change or maybe a folder/file became corrupted after a few switches between Windows and Bazzite. I'm hoping somebody has had a similar experience. Thanks!

Solution

if you are going to install the Linux native version of a game, I suggest putting it on the Linux-only partition and then install the Windows version on the Windows-only partition

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Solution

termdisc•7/11/25, 2:49 PM

if you are going to install the Linux native version of a game, I suggest putting it on the Linux-only partition and then install the Windows version on the Windows-only partition

termdisc•7/11/25, 2:50 PM

alternatively, if you force Proton in Linux, you'll always use the Windows build and this can be shared

termdisc•7/11/25, 2:50 PM

Warhammer has a native port

termdisc•7/11/25, 2:50 PM

BistroCookieOP•7/11/25, 2:53 PM

gotcha, that makes sense. So, in this case, if I'm going to continue to put games on the shared partition, I should force proton in settings?

Pixelguin•7/11/25, 2:59 PM

For those particular games with both Windows and Linux builds, yes

BistroCookieOP•7/11/25, 3:00 PM

Appreciate it. Sounds like I may want to consider not sharing games that have a native linux port and just play those games on Bazzite to keep things simpler.

sbonz•8/14/25, 9:40 PM

I'm facing a similar issue with FF7 Rebirth. Everytime I switch from bazzite to windows, a 76GB update has to download before I can launch the game and when I switch from windows to bazzite, a 20GB update has to download. I don't think this game has Linux/Windows-only versions yet it still downloads the updates. Did forcing Proton in linux work for you? If so, which version of proton?

Ssbonz I'm facing a similar issue with FF7 Rebirth. Everytime I switch from bazzite to ...

termdisc•8/14/25, 9:50 PM

What device is this?

Ttermdisc What device is this?

sbonz•8/14/25, 9:51 PM

GPD Win Mini 2023 7840U

termdisc•8/14/25, 9:51 PM

So a handheld running the -deck image?

termdisc•8/14/25, 9:52 PM

FF7R2 has different depots for Steam Deck and by extension, our -deck images.

termdisc•8/14/25, 9:52 PM

Your issue is similar but different from OP’s

termdisc•8/14/25, 9:52 PM

https://steamdb.info/app/2909400/depots/

SteamDB

FINAL FANTASY VII REBIRTH Depots

The Unknown Journey Continues... After escaping the city of Midgar, Cloud and his friends set out on a journey across the planet. New adventures await in a vibrant, expansive world in this standalone entry of the FFVII remake trilogy.
FINAL FANTASY VII REBIRTH Steam charts, data, update history.

termdisc•8/14/25, 9:53 PM

Forcing Proton will not fix the issue as it’s a different cause

Ttermdisc FF7R2 has different depots for Steam Deck and by extension, our -deck images.

sbonz•8/14/25, 10:35 PM

So basically the only solution is to install the game twice (on each OS’s dedicated partition)?

Ssbonz So basically the only solution is to install the game twice (on each OS’s dedica...

termdisc•8/14/25, 10:39 PM

Without knowing how Steam chooses the depot, this would be the easiest option

termdisc•8/14/25, 10:40 PM

I don’t think the

SteamDeck=x

SteamDeck=x

environment variable would do it.

Ttermdisc Without knowing how Steam chooses the depot, this would be the easiest option

sbonz•8/14/25, 10:41 PM

is it easy to resize both Windows and Bazzite partitions? I only dedicated 250GB for Windows and 150GB for Bazzite and need to take some of the space from the shared Btrfs partition

sbonz•8/14/25, 10:42 PM

I'm assuming I just shrink the shared Btrfs and it should create some unallocated space which I can then extend each respective OS's partition using that unallocated space?

sbonz•8/14/25, 10:43 PM

really want to avoid having to setup the partitions from scratch

Games update each time I switch between Windows and Bazzite

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