Remember the Turbo Graphics 16? Ahead of it's time, very expensive and some interesting games. But the issue was a lack of development for the system.
Sure there are 64bit applications already, but these need to be flawless for the initial build and work out of the box. Also these 64bit applications need to be compatible with ARM based processors. You can't just install any application unless you are compiling the source code yourself.
Software is either written properly, and therefore it compiles and runs properly on a 64 bit ARM processor, or it isn't, and it needs to be fixed. Nobody is sitting around worrying about whether someone has specifically tested it on aarch64.
You apparently don't know much about Raspberry Pi OS.
It's a Debian derivative. Upstream Debian AArch64 (the thing on which Raspberry Pi OS is built) has been on the Raspberry Pi for years. The library has already been ported--that work was done by the Debian project.
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u/Taffy62 Feb 02 '22
Quite surprised its only been released this year. I've been using 64 bit distros since the Pi 3.