Raspberry Pi 4 Gets 8GB RAM, Raspbian 64-Bit (Beta)
cnx-software.com
cnx-software.com
Obviously there's a power issue (afaik)and several other issues, but ARM support is hard for many projects. I know you can build docker containers for all architectures via qemu/buildx, but for stuff like Longhorn by Rancher for example or even Envoy (I believe) dosn't support ARM for some weird reasons I haven't gone enough into.