I've had a 6.9" Cosmic Orange 17 Pro Max for about a week. It was to replace my 6.7" 12 Pro Max. Although I already found my 12 Pro Max a tad big, it was manageable, so I thought the 17 Pro Max would feel about the same. It does feel similar and it is manageable too as strictly a two-handed device, but the larger size is still noticeable and I'm finding it a bit more awkward holding it in one hand while using the other hand to scroll.
So, I've ordered the Cosmic Orange 17 Pro and will see how that goes. I tested my daughter's 16e for a while and it does feel a tad small but it's more than usable and it's very comfortable to hold. I'm hoping the slightly bigger 6.3" 17 Pro will be sufficient for me.
I'm thinking I'd like the form factor of the 6.5" iPhone Air, but the single speaker and single camera are non-starters for me.
As of right now I'm not sure which I'll keep, but I'll make my decision next week.