No issues for me. If anything I've had better and more stable signal connections. In general though, I've seen very little difference between my unlocked note 9 and my unlocked note 10+.
Same exact issue. Hasn't found a food. Software does not do anything but remain the same. I've even tried flashing t mobile carrier specific firmware, no change. Has to be a hardware issue.. off subject, the mic also is horrible and I have to scream at the phone for it to react. My note 8 and s10 + do not have either of these issues and both are Samsung direct unlocked overdrive. I need to have them swap mine out
I have also had this same issue. I thought it was just me or just my location but every once and a while it's like I had no signal at all. My S10e did not have this problem. I am going to go to my local best buy to ask if they can fix this issue
Personally haven't had any major issues apart from the usual having to reset when data doesn't work. Other than that signal has been pretty great overall with no troubles. Definitely swap it out, there's always defective units out there. Good luck.