Nice game! The supermarket was nicely made and came off as unsettling. The game reminds me of the older resident evil games. My only critiques would be lag and the length, the experience is too short! There are a few bugs here and there, such as the lockers when spamming E restarts the opening animation,
and the supply room door after opening is inside the wall.
The lag spikes were most prominent at the start of the game, and when turning on the flashlight the first time. The lag went away after 1 minute or so when starting a new run. None of these things were game breaking, but could be some nice improvements.
The combat and shooting mechanics were really well done, and if you continue development, adding muzzleflashes as a light source could be really cool. While not an issue on my behalf, you could maybe also add a sensitivity slider?
I played the game in the browser edge.
That was all. Really nice game! It was a good experience.