The big thing that put me off Qt 6, even though I’ve been a fan of Qt in the past, is that I cannot download the official release, even if the LGPL version, without registering an account, while before you only needed that if you wanted a commercial license or to use their other services.
It depends on what you mean with "official release". This is generally true for binaries, but the official open source source code releases you can find download locations and instructions for on the website sans account requirement, even if it does make it a bit hard and scary from a navigation POV (you have to click through a page on "open source obligations" first and so on).
I guess I meant from the Qt.io website, as when I looked last it wasn’t clear where else I could get it. The link LorenDB posted seems like it would help me with that, though!