I think I found a viable solution. Following the guide here (
https://youtu.be/wyO5cjuqF4g) I enabled the Debug mode and using the command disableScreensaver I stop the screensaver and the Kindle will never lock. This of course has the issue of possible key presses but I keep it in a case so it shouldnīt be an issue.
What I donīt know is if I should keep the Debug mode active for this to take effect or if the Debug mode has any effect on battery usage or functionality in general. I will test and post here any findings.