Example with WebXR enabled has severe aliasing

I need help with WebXR.
The PICO4 device I use, the link below is related information.
Device Info link: Product Specifications | PICO4 | PICO中国

I saw an example of WebXR on the official website, which has very serious aliasing, and needs to remove the aliasing method
PG: https://playground.babylonjs.com/#JA1ND3#164

I tried it, the link below does not work well
PG: https://playground.babylonjs.com/#JA1ND3#861
Thank you very much if you can help to overcome this difficulty

When you said activating FXAA “does not work well”, do you mean it had a small effect, or it didn’t have any effect at all?

I don’t have a pico so I can’t really test that… What browser are you using in Pico?

Pico browser is an app for android devices, there is no pc browser.
When encountering the problem of anti-aliasing, what are the general aspects to overcome?
Thank you for providing directions and solutions, I will try.

There seems to be another browser for Pico - Welcome to Wolvic, maybe you can try it. It had an issue with aliasing which seems to be resolved - WebXR: Anti-aliasing not enabled on XR Session · Issue #284 · Igalia/wolvic · GitHub

I downloaded an apk package, after installation and opening, it prompts “Copyright verification failed, please purchase from formal channels”.
Is there a way to overcome?

I sadly have no experience with pico, so i can’t really help… sorry…