I recently found a work around using the sandbox pop-up that showed up, unlocking the full game for me, however I've only been able to replicate it once. This was using the itch.io version.
I've tried updating, reverting, all to no avail.
the specs:
Processor 11th Gen Intel(R) Core(TM) i7-11370H @ 3.30GHz 3.30 GHz
RAM 16.0 GB
x64-based processor