Google is starting to reveal the secrets of its experimental Fuchsia OS
theverge.com
theverge.com
Does it seem suspicious to anyone that Google is pushing Fuchsia just as truly open Android phones like Puri.sm and /e/ are coming to market?
If anything, a microkernel based OS will make it easier for 'truly open' devices to exist, because a lot of device hardware specific stuff that gets patched into kernels today turns into user-space stuff that is easy to update and replace separately.
Fuchsia must have been started in about 2015 at the earliest, with the first code hitting the public a year later. Neither of these alternative platforms were relevant then and they aren't now.