And if Linux gets something closer to the other's user-interfaces which the average person finds as easy to use, then we might see those two 'biggies' following Owl cam right into the garbage can
Highly functional and very easy to use Linux user-interfaces have been incorporated into tens of thousands of different devices and billions of products for at least a decade now.
The Android operating system based on the Linux kernel is in all kinds of smartphones and tablets. The Chrome operating system is also Linux based. Almost all smart TV GUIs are based on Linux. The touchscreen entertainment, control and navigation displays in all Tesla automobiles is based on Linux as well (Ubuntu, apparently). Many smaller, lesser known products such as CCTV DVRs and NVRs and various other gadgets use some form of Linux based GUI. Touch screen control panel interfaces on industrial equipment, manufacturing equipment, agricultural and mining equipment use Linux. The list goes on. So, Linux well crafted easy to use GUIs are pretty much everywhere.
The Linux GUI simply sits side by side with the "biggies". Nobody is going into any garbage can.
Linux is pretty amazing and is used in all kinds of remarkable systems these days. The onboard flight control system in the SpaceX Falcon 9 rocket runs on Linux. The Mars rovers robotics run on Linux. For some things maybe Linux did put the biggies in the garbage.
Tesla touchscreen display.
Tesla touchscreen and dashboard displays.
Android variant
Android GUI developer templates
Linux based Smart TV GUI
John Deer harvester/tractor Linux cab display interfaces.