Been checking signal status, doing a bunch of A/B comparisons, restarting each time.
There's some chance that the CDMA network setting is a tad better, but not significantly.
But, there are a ton of variables in the mix. I don't control traffic on my local cell tower, I have no idea what VZW is doing beyond the tower in their network regarding net priority, and I am only testing from one location. My home.
I am thinking that I'll leave it set to CDMA and see how it performs at work, where I have very specific physical boundaries where a signal can be had, and exactly where it falls off.
Would be great to hear from otheres.
Interestingly, there's not a lot of talk about these settings on Pixels on popular forums.