I would like to be a beta tester as well and will report bugs to whatever are the proper internal/external channels, following the instructions to do so - if any. I would like to get involved and help however possible
I should note that prior to Defold, my experience comes from Unity and more recently Godot
I've been involved in shipped games more as an artist, but in my free time I learned programming and am playing with prototyping things for several months.
I have previously reported bugs on many open source projects and have even helped with compiling and packaging for linux. So there is some experience with debugging and reporting