True, but those are trivial to port as there are already mature JDKs and JavaScript VMs for ARM64. Porting an electron app should be a matter of checking it out and building it with ARM support. Applications with internal JITs custom-built for X64 are going to be a lot tougher.
Electron doesn't support aarch64 builds compiled from aarch64 hosts yet (so you have to cross compile), and doesn't support cross compiling if you have any native code addons.
Some apps out there are between a rock and a hard place if it weren't for rosetta.
There's still a non trivial amount of time to get that propagated. First merged into chromium, the merged into electron, then actually used by the client programs.
