That's not really relevant. You can personally choose to not use Electron apps, but many people cannot or do not want to choose to do that. Like it or not, it's a thing now. I've noticed a lot of developers seem to have this confusion that anyone else can avoid Electron. I guess you can if you spend all day in the terminal and the IDE but most other people cannot.

And that sounds like something is seriously wrong with your machine or your drivers. GPU rendering has massively improved performance and battery life on every machine I've ever tried. And especially on embedded devices with a low power mobile GPU, see for example here: https://social.librem.one/@dos/104984930233748319

Compositing should do so as well by avoiding unnecessary redraws. That sequencer would probably benefit greatly on a Raspberry by using GPU rendering, the screenshot even shows it rendering video and shaders...