Regarding the options for a quicker turnaround
This post is dated (based on OH2) and is for a device that has user defined channels, however, the general process to setting up a development testing environment is outlined. I use the github desktop with a Z-wave binding fork and VSC on a windows machine with maven to compile test jars. This method can handle XML changes and java code changes.
Another post, also dated (OH2) outlines a jar update process if only XML changes are needed. I have used this in the past on both a windows machine and my Pi. For a recent use look towards the end of (June 1 2022) this post.
Obviously after you finish local testing the device DB needs to reflect your changes or the whole system breaks down.
Bob