It surprised me.It also relates to instrument selection. I have 1 flute that sounds best to me while practicing, but sounds a bit dead/veiled in recordings. I have another flute that sounds too bright & zingy when practicing, but sounds better in recordings. It's amazing how just 8' of distance affects the tone. Plus when you're playing an instrument physically connected to your head (woodwinds, violin), you hear all those resonances that nobody else can.
That's not just violin players, but most professional musicians. I only play non-professionally for fun, but decades of regular playing has given me slightly asymmetric hearing: my R ear is better than my L. That's despite wearing musician's earplugs when practicing & performing for the past 20 yeras. Sadly, back in the 1980s when I was learning, this topic was hardly known or mentioned. Most teachers assumed only electronic/amplified musicians were at risk, not acoustic instrument players. Consequently, a lot of people lost a bit of hearing acuity. Not nearly as bad as those who attend rock concerts, but still...
My wife is a professional musician, singer and choral conductor, who also plays the piano a lot for fun, rehearsals and voice coaching and used to play the violin for fun too, before arthritis stopped her.
I OTOH am an engineer who worked in motor racing with un-silenced racing cars for 35 years.
Her hearing is more damaged than mine, in fact mine is better than average for my age and she needs hearing aids, which she hates.
I am sure some of this is genetic but also "dose" related. The noise levels were higher for me but not for long, or as often, and as a music lover who had done noise and vibration research in my first job, I was always sensitive to the possibility of damage so stuck my fingers in my ears a lot
She was exposed daily for hours even if at a lower level.
It really isn't fair.