Hello,
For immersion, I use helmet reshade:
https://www.nexusmods.com/starfield/mods/10340?tab=description
with immersive helmet mod:
https://www.nexusmods.com/starfield/mods/4930?tab=posts
And use a button to remove both from my head:
https://www.nexusmods.com/starfield/mods/5527?tab=description
But it would be great, that an audio mod make that when the helmet is on, all the sounds should be a little dull. Simulate that a helmet is on my head, so my hearing not that sharp. When I put down the helmet (hide helmet function in the game), then the sound change into normal.
What do you think?