I have yet to take my Part 107, but it appears that doesn't really offer much of an answer for VLOS. Obviously conditions will drastically impact any set distance...
My question I guess is how far do you feel comfortable flying your drone on a clear day? Obviously observing all rules of not flying over other humans etc... I live near a large park and I was quite surprised to see that the 3 mile radius from my house covers the entire park. I haven't taken my
M2Z beyond 1000ft distance, and so I don't know that I'm willing to fly beyond 1 mile, but curious how many people do that on a regular basis.
Seems like the regulation "police" are ready to answer, and I think that is good since very few really KNOW what the law says (unlike posted speed limit signs posted every 1/2 mile LOL).
But here's the answer that you're looking for: Honestly, I am more often outside of VLOS than inside. Where I live is pretty heavily forested, so my Mavic is outside VLOS usually in less than 100' distance. BUT, I am NOT flying at altitudes in which I'm endangering any other artificial flying objects, NOR am I flying over heavily populated areas.
In addition, I'm 15 minutes away from the ocean and the Intercoastal Waterway. Once again, I'm not overflying boats or people outside of VLOS.
I'm always VERY cautious about where my drone is both for safety reasons, but also in the event of an unexpected loss of connection between my phone and controller so that I can fly back into VLOS using the distance data on the RC screen.
I've met perhaps 10 sUAS pilots in my year of flying, all pretty seasoned veterans, and several "old-farts" like me, and they've all been willing to share honestly on their own VLOS practices.
Now, if one is flying Part 107, there are more serious considerations since "commercial" flights are rarely flying over "nothing" and "nobody". If I were flying 107, I'd be flying strictly by the book for safety and liability reasons. But, this does not suggest that safety and liability is ignored when one is NOT flying Part 107.
Bottom line is this: whether I'm driving or flying, the rule that I practice is always remembering that my RIGHTS end where another's RIGHTS begin! Kind of like driving over the speed limit- the best time to do this is when no one else can get hurt AND when no one else is looking.