Chromebook run ChromeOS which is Linux, heavily tuned. It has an Android emulator. The connection to Bluetooth is handled by ChromeOS not Android.
The Soundcore app might work, if ChromeOS has been modified to let Soundcore app talk directly. But as soon as you said Chromebook I thought I’d warn you might never work.
No don’t fiddle with Linux, that’s just a non-tuned Linux running in parallel.
You might get lucky, make sure you connect once the Q30 icon is central
On my Android phone looks like this
Workaround is extremely simple, just control from your phone and use on your Chromebook as a regular BT device. I do that, my laptop is Linux and is control the Q30 from my phone. Simple.
You’d use the Chromebook normal settings, Bluetooth and just connect as per any BT device. The app, if it works, is for other features.