view the rest of the comments
Steam Hardware
A place to discuss and support all Steam Hardware, including Steam Deck, Steam Machine, Steam Frame, and SteamOS in general.
As Lemmy doesn't have flairs yet, you can use these prefixes to indicate what type of post you have made, eg:
[Flair] My post title
The following is a list of suggested flairs:
[Deck] - Steam Deck related.
[Machine] - Steam Machine related.
[Frame] - Steam Frame related.
[Discussion] - General discussion.
[Help] - A request for help or support.
[News] - News about the deck.
[PSA] - Sharing important information.
[Game] - News / info about a game on the deck.
[Update] - An update to a previous post.
[Meta] - Discussion about this community.
If your post is only relevant to one hardware device (Deck/Machine/Frame/etc) please specify which one as part of the title or by using a device flair.
These are not enforced, but they are encouraged.
Rules:
- Follow the rules of Sopuli
- Posts must be related to Steam Hardware or Steam OS in an obvious way.
- No piracy, there are other communities for that.
- Discussion of emulators are allowed, but no discussion on how to illegally acquire ROMs.
- This is a place of civil discussion, no trolling.
- Have fun.
This is what I would do, hopefully it will work for you
Back up the save manually or with ludusavi from discover in case steam cloud shits the bed,
remove the compatdata but double check the game id number (any of steamdb, steam store, protondb, get id from web address):
rm -r /home/deck/.steam/steam/steamapps/compatdata/1172620(Or just navigate to the location and delete it with the file manager)
Set game to either to proton ge or just default if it's verified,
launch game.
I find this works whenever I screw up a game I'm modding or editing files of.
Edit: if that doesn't work try disabling steam cloud, backing up save, and deleting the non-backup version in case the save is broken and the game can't handle it.