Earlier quoted context omitted.
> It's because a) people want high resolution, This cannot be any serious part of the reason, since literally playing 3D video games fullscreen at full resolution can use less power than Discord. [EDIT] For that matter, any streaming video platform. They're ~all extremely battery-efficient even when pushing 4k.
Video games have optimized rendering pipelines and assets. Discord is showing emojis, images that are 10MB+ each, and all kinds of user generated crap at high res that it doesn't have control over. Personally I'd prefer to go back to just text.
And if Discord is rendering a 10MB+ image then that's definitely a problem with discord. 1920x1080 at 8bpp isn't even 10MB.