I still strongly believe Servo can be a real counterpoint to Chrome/Chromium's hegemony in the long haul. Not sure why Mozilla ditched it nor why The Linux Foundation gives little to no support at all to it.
WebKit is a nice competitor, too. Look at Orion browser, it's a pretty decent competitor. Although they only target macOS, WebKit can be used on Windows and Linux, too.
Because Mozilla benefits from Google's donations (the majority comes from Google), and being a counterpoint to Google's Chrome is bad for Google, which means less or no donations to Mozilla. Google holds the key here. They have leverage over Mozilla.
> nor why The Linux Foundation gives little to no support at all to it
The Linux Foundation is mostly a dumping ground for dead and dying projects. Particularly they seem to specialize in abandoned commercial open source projects.
I dont think the Foundation provides much, if any, developer funding for these projects. They list $193M in "project support" expenses but host over 1000 projects.