My guess is that someone put Gallium in an Aluminium pan. Similar to https://m.youtube.com/watch?v=IgXNwLoS-Hw

Nothing, it's already ruined(!)

Jan.ai might be a good starting point or ollama? There's https://tales.fromprod.com/2024/111/using-your-own-hardware-for-llms.html which has some guidance for using jan.ai for both server and client

Is that image AI generated? There are a different number of columns at the top compared to the bottom

You're looking for something to export the image at a lower resolution (resize) rather than something to compress the image. Any open source gallery/image editing app should be able to do this.

One example would be "image toolbox" on FDroid. I've not used it but it seems to have the feature you need

What "language" is this?

Would someone mind explaining this for a non-american?