So I was able to pick mine up yesterday (again, S22+ Unlocked) afternoon at FedEx and started trying setup today. I'm going to run on the assumption that this is more of a factor of the fact I'm having to rely on TMo/TNX now than Sprint SIM/primary due to the TMo SIM requirement, but I can't say much positive about mobile signal comparatively while at home here. With my S21, while I never got 5G much if at all in my basement (we're near Italian Lake area of Harrisburg now), I would always have at least some kind of consistent LTE signal on varying bands still. On the S22, and unless I stay on Wi-Fi calling (which registers me as on TMo Wi-FI Calling Network), I pretty much ether am connecting to Sprint B26/LTE 800 nearby, or zilch/nada otherwise. In fact, I couldn't confirm the thing was actually activated and working properly for mobile until I went outside finally (after a lengthy 2-tier call into Sprint care).
I should have guessed/known better I suppose, but I was trying to be optimistic. I was going off my experience with the S21 and just assumed I could still activate properly and have it register, but with a TMo SIM/TNX at least where I live now, its a lessened experience without WiFi being involved compared to the S21 still on a Sprint SIM.
That said, the phone itself I'm very happy with otherwise thus far. Even with almost every app I had loaded previously re-loaded on it and all my pics/files/texts/etc migrated over, the thing is very noticeably faster than my S21 - *especially* bootup time. This thing boots up to lock screen/home screen and usability in about 10-15 seconds if that so far at least. Easily between 3-4 (though leaning closer to 3) times faster than my S21 does.