Without some compression you’d not be able to hear at all.
Assuming ‘normal’ hearing has a maximum dynamic range of approximately 120dB, if you have a SN loss of 50-60-70 dB plus any degree of recruitment, you need compression to ‘fit’ the sound into the available dynamic range. Whether that’s 70-60-50-40dB.
How you tackle that in different environments is down to your compression processing strategy:
Some aids kick in early to deal with louder sounds while others retain more loudness growth. Different people like different approaches to this; that doesn’t make some hearing aids ‘better quality’ than others.
Oticon has used a technique called ‘Floating point linearity’ - this allows normal (linear) growth of loudness in brief time windows, but which means that the same speech sound will be amplified differently in different overall average noise/speech situations.
Widex has a different approach: it has a ‘soft-release’ technique which delays the changes through syllabic peaks of words, to preserve the ‘shape’ of the word loudness.
Phonak historically uses fast syllabic changes in compression to attempt to reproduce every part of the speech as best as they can (per NAL2 etc.) but this can cause loss of parts of speech; especially with people with poorer auditory resolution. I believe Marvel has more of a smoothing function specifically to deal with this.
As for zoom calls: can’t you Bluetooth them straight to your aid?