Try Podman Desktop if you want a GUI to manage your container , and docker desktop is the source of the the crashes.
You can run docker images / container / kube through it as well as podman one.
It is open-weight, we dont have access to the training code nor the dataset.
That being said it should be safe for your computer to run Deepseeks models since the weight are .safetensors which should block any code execution from injected code in the models weight.
The patch set is open source, so is the application that does the patches. I don't feel like it's worse than downloading most apps.
Though you still rely on Google services.
https://github.com/revanced/revanced-manager for YouTube (and other App mods), you need to patch the app yourself. (If you are downloading a patched apk you are getting scammed. You have to patch it yourself)
https://github.com/mihonapp/mihon for manga / manhwa
I use internet archives for paywalls but their might be a better solution.
F-droid has a a lot of neat open source app, I guess you know of it since you are picking graphene, but just in case.
Firefox supports addons, it's been a great browser (though its UI is a bit rough sometimes) and could be your solution for YouTube with uBlock and the background play addons.
I personally don't like graphene launcher, I personally use NovaLauncher (the paid version), their is quite a lot of FOSS ones too.
Well they are fully closed source except for the open source project they are a wrapper on. The open source part is llama.cpp