Also curious about this.

To run conda-forge arm64 Linux binaries on Android in termux requires proot-distro because the ABIs are slightly different FWIU.

What is necessary to run Android ARM64 binaries on Linux ARM64?

Android Studio, LineageOS or BlissOS's outdated Android containers, a runtime like vinegarhq/sober that emulates just enough of Android.

An Android binary that makes Linux compatible syscalls only (that doesn't require Android libraries that aren't compiled for Linux) won't work will it?

on that note, it would have been nice if they also clarified if this means they'll be shipping an official "chrome for testing" for arm64 linux, too.

You've been able to build and run Chromium on ARM Linux for a long time (I'm running it right now), it's just that they haven't provided an officially branded Chrome.

This is a good thing. While Chromium works well, there are a few things (like syncing) that is a bit of a pain to set up.

There were actually some paid services that provided a distro-agnostic chromium arm64 builds mostly targeting people running puppeteer on AWS ARM lambda. You can see some discussion here https://github.com/alixaxel/chrome-aws-lambda/issues/241

edit: I think I replied to the wrong comment.

All of that is very different from The G actually provided a packaged official Chrome build, though. Which for some reason they couldn't be bothered to do before (Firefox exists though)