Last content patch was nearly a year ago and there have been no fixes to improve quality of life.

Textures and boundaries not working as intended, including walking through walls and falling through the floor
Objects glitching, rattling and/or getting stuck
Index is not supported
Mouse + Keyboard controls are still broken - try playing Mario with the 5AMP keys and one hand
Teleporting is mostly broken
Frequent animation and audio bugs and skips break the immersion
Pause screen still missing

Last answer from studio was "we'll fix it soon". Heard that one before. Just play the older demo, it has less bugs and better controls.

well tbh it does say alpha so like u bought it knowing that it was still alpha and now ur saying its broken and doesnt work properly? its a known fact to all people stupid and smart that alpha games dont represent the final game and are pretty much always buggy af

If you bothered to read previous comments, they announced in April on their Subscribestar that it's still in development with hopes to release the fully finished product in June.

"It's coming out soon!" Yeah, nah, heard that one before. Alpha or no, the DEMO works better than the updated release, and it's not worth paying for - play the free demo for a less shit experience.

The demo does not feature the following bugs or bullshit:
Broken M+KB controls
Objects starting glitched/rattling/out of place
Falling through the floor
Missing pause screen