Unfortunately, it's on the editor to support mixing fonts. There's never been multiple compatible monospaced fonts before so no editors really support this yet. Lots of editors also don't support variable typefaces properly yet (ahem, VS Code) but this is going to change.
Ultimately what you're describing is the future! But we have to release the typefaces to bootstrap that future.
We made a prototype extension that hack it into VS Code. But they're hacky af and not really releasable.