I usually carry a steel S&W 340 Airweight and the flash thing bothered me. I sorta solved it by mounting a laser sight on it. I tested it out at 15 yards in a dimly lit range (where flash had bothered me before) by holding it about bottom-of-rib cage level with two hands and I printed a pretty good group with it, double-action (of course).
Using the sights, the flash is right there in front of your eyeballs
But the flash from down at that level didn't bother me at all, in fact I didn't even notice it.
Noise indoors without "ears?" it's going to be loud. I popped an Aquila
sans poudre (without powder) round into some phone books in my living room once with a short-barreled auto just to test the firing pin strength and it was loud. I expected a little pop, but even without powder, the CRACK made my ears ring.

They're sorta like BB or CB caps, without powder, except in .22LR cases.
I guess the lesson there is no matter what you choose, the noise indoors will be loud. As to whether there's actual hearing loss or not, I can't testify. However, as someone said, I ain't going to stop to put in earplugs if there's a skunk in the house.
Terry, 230RN