I had so much hope when I saw "cross-platform", finally a youtube downloader my parents can use on their 8 year old laptops.

But alas, it's just electron. I guess they'll continue to use Newpipe on their phones, which has been working very well.

Edit: I just realised that my comment is a bit on the meaner side. While I absolutely detest the current trend of Electron apps I also realise that the ecosystem doesn't have any good options. QT can be okay if done right, but C++ is neither ideal nor approachable for Application development, especially for hobbyists.

Have you tried freetube? (I'm unsure if it's electron though)

Freetube uses Electron (from project README : https://github.com/FreeTubeApp/FreeTube)