"Artifacts for pages are too large"

TL;DR: The artifacts do get uploaded, but apparently they fail to extract.

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Docs are no longer deployed due to the pages:deploy failure "Artifacts for pages are too large".

• First pipeline that this occurred: https://gitlab.com/gitlab-org/gitlab-docs/pipelines/75057999
  • pages job https://gitlab.com/gitlab-org/gitlab-docs/-/jobs/267259506
  • artifacts zip size: 442MB
• Last successful pipeline: https://gitlab.com/gitlab-org/gitlab-docs/pipelines/75054338
  • pages job https://gitlab.com/gitlab-org/gitlab-docs/-/jobs/267245450
  • artifacts zip size: 439MB

As a comparison, the www-gitlab-com's artifact zip size is 767MB https://gitlab.com/gitlab-com/www-gitlab-com/-/jobs/267376429

The artifacts do get uploaded as opposed to gitlab-com/www-gitlab-com#4782 where they failed to upload in the first place. It's something to do with Pages I think. In www-gitlab-com we don't use Pages.

Questions:

1. How is the artifacts size connected with Pages?
2. Does the artifacts size count the zipped file or its unzipped contents?
   • It's the uncompressed size that matters https://gitlab.com/gitlab-org/gitlab-ce/blob/006bc124366078d717ea8a331fdfd1e2ccd3476f/app/services/projects/update_pages_service.rb#L90