This is important, if your games are installed in a drive formatted in NTFS you will have problems with Proton/Wine/etc. One way to discover the issue is to run Steam from terminal and it will tell you the details in an error message
shaka
joined 2 years ago
Can I ask what solution helped you to pair them with the Steam deck?
If you don't want this to happen in the future there is a solution that still works in the steps 4 and 5 of the first section of this tutorial:
But are your games installed in the Ext4 partition? See my other reply from before.