I also thought about installing official LE with gamestarter addon. These gaming builds are just ****. If the developer wakes up one day and thinks "nah I won't update this build anymore" you are just fcked. Gamestarter addon is more up-to-date and even if it would stop updating you have atleast the latest LE build. This RR build still runs with kodi 18.4 and has a kernel bug which causes tearing in my videos.
My only issue is that the official LE doesn't have vulkan driver and I need this.