These projects completely overlook _why_ people choose Electron over the system view. - Nobody wants to be testing against multiple browser/rendering engines in 2019. - Nobody wants to wait for a vendor to update their implementation when Chrome has the feature available almost immediately. Edit: Since I can already see the litany of armchair-quarterback-desktop-app-authors, I'm just going to link to the comment from…
Yes, lots of projects want multiple, competitive rendering engines.
It used to be that Windows was the only viable target OS for commercial software. Firefox and Safari gave IE competition and gave developers who wanted to target Mac and Linux a way to get a foot in the door. That kicked off the whole generation of web apps we’ve just lived through. If developers give up on Gecko and WebKit, then they allow a monopoly again. And since Electron is made by GitHub and is now owned by Microsoft, Microsoft will again have the monopoly (with the caveat that Google has primary influence over Blink).
Render engine competition keeps web standards relevant, which keeps the web open. Take away competition & we’ll be back in a world where people build to IE6 for a decade instead of targeting standard HTML/CSS/JS.