The videos from Youtube homepage are wrongly displayed on only one column regardless of the window size

[Softvision-RemusDranca]

[Affected Versions]:

• Firefox Reality version 8-40062127 (8a91dcb)

[Affected Platforms]:

• Oculus Quest - Android 7.1.1
• Oculus Go - Android 7.1.2
• HTC Vive Focus Plus - Android 7.1.2
• HTC Vive Focus - Android 7.1.2

[Prerequisites]:

• The headset is turned on and the browser is opened.

[Steps to reproduce]:

1. Navigate to the https://www.youtube.com/ website.
2. Observe the videos displayed.

[Expected results]:

• The videos are displayed in multiple columns according to the window's size.

[Actual results]:

• The videos are displayed in one column to the right leaving the other space blank.

[Additional Notes]:

• The videos are displayed correctly after opening a video and navigating back on Homepage or if the Homepage button is clicked.
• Needed by [meta] Improve YouTube experience #1760.
• Attached is a screen recording of the issue: link.

[Softvision-RemusDranca]

I have verified this issue and it's no longer reproducible with the latest Firefox Reality version 8-40101959 (3c2a71e). Now, the videos are displayed on multiple columns according to the size of the window.
Tested on Oculus Go (Android 7.1.2), Oculus Quest (Android 7.1.1), HTC Vive Focus Plus (Android 7.1.2) and HTC Vive Focus (Android 7.1.2).