Hello @hisforeverkid, that was me a year ago who told you how to get the appimage.
Click this link: Krita Desktop | Krita
Then click the large blue button that says “Linux 64-bit Appimage”, that will give you the version 4.4.3 appimage for download.
When it’s been downloaded, right-click it then select Properties, then click on the Properies tab and enable it for execution, then Close.
The appimage file will then run when you double click it.
Personally, I prefer the appimage because it’s so simple to get and to use.
For your palette problem, did you create a personal palette using the Palette docker or did you add colours to an existing palette?
Both are possible and the palette should appear in the drop down list of palettes at the bottom of the Palettes docker.