PS1 vibes :) Nice foundations for further development on this prototype!
The camera and character control felt quite intuitive. Like you said there are some object visibility issues, but maybe more spots for static cameras in certain rooms could fix that (or a higher resolution, of course).
I would've liked some feedback for interactive objects similarly to the eye icon in the corner (e.g. for the key pickup and the device on the wall in that computer room).
I liked that different rooms have different reverb effects on the audio, it really adds to the atmosphere and makes you feel more immersed.
Keep up the good work!