There's a pretty active modding / hacking channel in the Light Phone discord that's out there somewhere. I haven't tried it on my own LP2, but some folks are flashing theirs with alternate versions of Android to get a few additional apps that they need
In my opinion, not having an open platform and open-source code is completely at odds with "respecting the user" and whatever nice stuff they write on their website.
If I recall correctly v1 and 2 were completely closed, not sure though.