Game Assist is a mini version of Edge available through Game Bar, and here's how to use it.

If Xbox Game Bar Recording isn't working and you encounter Error 0x82323619, follow the solutions mentioned in this post to fix the issue.

Given that Windows 11-based handhelds like the ROG Ally use Xbox controller features, it seems baffling that out of the box you can't hit a button and bring up the Xbox Game Bar.