I recorded some short video of me trying out your game
https://litter.catbox.moe/grzls3.mp4
It's the older linux version, no commentary. Watch/download before the link expires.
The video must look really weird with no commentary. Like I am doing some weird things. The reason for that is because for some reason the game would sometimes ignore my input, and make my character stop. I do not know if it's linux specific bug, weird velocity resetting, or maybe you are reading input in fixed update instead of an update, but it made it really hard to play.
I am sorry I did not ply for longer. I tried to figure out when I had problems with input for the most part.