UFT One scripts execution

1. How can we accomplish parallel execution of UFT One GUI tests?
   I'm aware of UFT One's Parallel Runner, but are there alternative methods to achieve this?

2. Is it feasible to execute UFT scripts stored in ALM on a Linux machine?
   Can this be accomplished using the UFT Runtime Engine?

3. I'm familiar with the availability of UFT One Docker images for mobile and API tests within a Windows Docker environment. I've found these images at hub.docker.com/.../.
   Are there any Docker images specifically designed for running GUI tests?

Kindly provide me with a detailed document as it would greatly assist me.