I don't have an issue with it for my own sake but it does concern other players. I have an advantage they do not have and I am not supposed to have that advantage.
Where you say- However, the "1st/3rd person" character on the public hive cannot be used on the "1st person" servers, and the "1st person" character cannot be used on the "1st/3rd person" servers.
I say- I dont have two public characters, just one. That one public character is the only option I get. So if that character is in Cherno on a public 1/3pp server then it is also in Cherno on all public servers whether they are first-only or 1/3pp. Apparently that gives me an advantage that most players with two seperate characters dont have, so it is potentially unfair. There are others like me who also have a single public character. We seem to be in a minority but as it is the only option we seem to get, we imagined that was normal but as you say and as most Reddit posters say- it isn't normal.
Try not to be distracted by the side issue that I have a unique character on just one public first person server. That character is NOT a first-only public character, it cannot be taken to any other public server be it first-only or 1/3pp. It is just an oddity that is only of curiousity value. The existence of that unique character does not give me any unfair advantage, it just confuses the issue, try to ignore it. Pretend that character has never existed, then it should start making sense for you.
It does twist your head around trying to make sense of it but some players, apparently a minority, do have just a single public character as I do and we thought it was like that for everyone. But as you say and as most at Reddit say- it is not normal. There are supposed to be two distinct characters for public servers.