Ok so in a normal release all they do is switch the launcher to login to the live servers by default, and there is usually a checkbox you select to log back into the beta server. If you choose to log into the beta server most of the stuff you made in beta should still be there. If you choose to log into the live server, you have never been on it and start out just like any other new player, with nothing.
Sometimes, to keep the beta server close to what the live servers are, (you don't want the test server to get outdated as any testing on it would not reflect what would happen on prod anymore) they "clean it up" and some things get "wiped", but there is no "wipe" when logging into the live server at release as there is nothing on it to wipe and nothing from the beta server ever gets carried over to the new live servers.
Soo, people say one this and others say that, but nobody is saying for sure.
And when you install the live client do you plan to rename the beta install path to say beta so the live client is installed in the correct directory?
(I keep the live client on my NVME drive and the beta clients on an older SSD)
Thanks.