If I don’t alt-tab the game doesn’t break.
It's likely the 560 driver on Wayland being the culprit here. Specifically resizing XWayland windows. You could try running nvidia-smi in a terminal and see what specifically is causing this VRAM spike.
Reports of excessive VRAM usage with the 560 driver on Wayland. See this for a potential fix. Hope it helps
In the meantime you can use this. Feel free to ask if you need further help.
Edit: I found this guide. Hope it helps!
https://www.gamingonlinux.com/ is a wealth of information, of which, I am not willing to let go, as it is a resource of current news that is very relevant to this "Linux Gaming" sub. So no; I will not stop linking https://www.gamingonlinux.com/ to this sub just because you got butt hurt.
RIP our wallets 😓
Sorry for the trouble
No problem! I'm glad I could help :)
Do lutris always download user-made scripts, or is it just if you select it?
Lutris does not automatically download user-made scripts; you have to add them manually.
The only times I've encountered a game or program not launching via Bottles, it had to do with missing dependencies and/or other issues with the installer.
SteamDB has a list of dependencies that are used for Ape Out, of which you can try adding to your Bottle.
However, I would try running the game in Lutris; In Lutris, if you encounter issues with the game, you can click on "show logs" which will (hopefully) help you out a great deal. Lutris uses their own runtime which is primarily pulled from Valve's Steam runtime (IIRC), saving you from having to hunt for dependencies (if missing dependencies are the issue).
You can check if it's using the Discrete GPU by going into "Details" in your game's bottle, then go into "settings", and make sure that the toggle for "Discrete Graphics" is turned on. You can also set an environment variable; DRI_PRIME=1. Also might want to check your HDMI or DP cable is plugged into your GPU. You could also try checking GPU usage while the game is running, and seeing if it's using your GPU at all.
You said you moved to Fedora from Pop_OS; If you are using an Nvidia GPU, you might want to check if you've got the Nvidia Proprietary drivers installed or the Nouveau drivers. You can check this by running lsmod | grep nvidia in a terminal. If you get any output whatsoever then you're using the Nvidia Proprietary drivers, which is what you want for gaming.
If it is a shader issue; in the same "settings" in bottles make sure DXVK and VKD3D aren't disabled. There's no real way to bypass shader compiling. All your games need to compile shaders.
Happy to help!
It runs at 3–5 fps, and the CPU is maxed
Do you have a GPU or are you running the game on integrated graphics? Running on integrated graphics can definitely be the issue here but It's more likely that it's shader compilation however.
Assuming when you created the bottle, you chose "gaming", it will use "soda" as it's default runner, which is based off of proton. Maybe try going into preferences, runners, then click on "Soda", and try messing around with different versions.
According to the latest ProtonDB reports of Ape Out, Proton 8.0-5 was being used. Looking at my available "Soda" runners in bottles, I see soda-8.0-2,soda-9.0-1, and soda-experimental_8.0 as the latest runners available. I would try using those runners as a start.
Also, (I only now just noticed it), under preferences, in General, there is an "Integrations" section. Under that there's "Steam Proton Prefixes", which (I assume) allows you to use Proton prefixes.
Here are the following commands, depending on your installation method of Steam to give permissions to Steam's path if it doesn't have it already.
Steam non-Flatpak:
flatpak override --user com.usebottles.bottles --filesystem=xdg-data/Steam
Steam Flatpak:
flatpak override --user com.usebottles.bottles --filesystem=~/.var/app/com.valvesoftware.Steam/data/Steam
Alternatively you can use Flatseal and add the path: ~/.var/app/com.valvesoftware.Steam/data/Steam
Undoubtedly
Flatpak's security and sandbox has gotten much better in recent years. I've been using Steam via Flatpak for a while now and haven't run into any issues yet, other than not being able to make desktop shortcuts of my games.
I use Flatseal (another Flatpak application) to further restrict my Flatpak's permissions) The default Flatpak permissions for Steam aren't bad IMO (at least when compared to other Flatpaks) but you can tweak it to your liking using Flatseal.
If you want to take it a step further, I would recommend using Goldberg's Steam Emulator, which is FOSS, and it will allow you to bypass Steamworks DRM (which is Valve's very weak DRM) for games which solely use Steamworks DRM.
I find that the overwhelming majority of my games just use the Steamworks DRM if any, but YMMV. Using Goldberg's Steam Emulator is also a good way of preserving your library if, in the unfortunate case, Valve decides to remove a title from your library for whatever stupid licensing reason they come up with.
After freeing your games using Goldberg's Steam Emulator you then could use the Flatpak of Lutris and disable network access for Lutris/further restrict permissions it has to the rest of your system using Flatseal.